The exit age distribution curve E(t) for an ideal CSTR with the average residence time, τ, is given by (A) e -t/τ (B) e -t/τ /τ (C) 1 - e -t/τ (D) 1 - (e -t/τ /τ)

The exit age distribution curve E(t) for an ideal CSTR with the average
residence time, τ, is given by
(A) e
-t/τ
(B) e
-t/τ
/τ
(C) 1 - e
-t/τ
(D) 1 - (e
-t/τ
/τ)
by

1 Answer

Answer :

(B) e
-t/τ
/τ
by

Related questions

The residence time distribution of an ideal CSTR is (A) (1/τ) exp (-t/τ) (B) τ exp (-t/τ) (C) exp (-t/τ) (D) (1/τ) (-t/τ)

Description : The residence time distribution of an ideal CSTR is (A) (1/τ) exp (-t/τ) (B) τ exp (-t/τ) (C) exp (-t/τ) (D) (1/τ) (-t/τ)

Last Answer : (C) exp (-t/τ)

For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by (A) A Dirac delta function (B) A step function (C) A ramp function (D) None of the above

Description : For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by (A) A Dirac delta function (B) A step function (C) A ramp function (D) None of the above

Last Answer : (D) None of the above

The use of space time is preferred over the mean residence time in the design of a/an (A) Batch reactor (B) Ideal tubular-flow reactor (C) Slurry reactor (D) CSTR

Description : The use of space time is preferred over the mean residence time in the design of a/an (A) Batch reactor (B) Ideal tubular-flow reactor (C) Slurry reactor (D) CSTR

Last Answer : (B) Ideal tubular-flow reactor

For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of: (A) Ideal plug flow (B) Bypass (C) Dead zone (D) Channelling

Description : For a packed bed reactor; the presence of a long tail in the residence time distribution curve is an indication of: (A) Ideal plug flow (B) Bypass (C) Dead zone (D) Channelling

Last Answer : (C) Dead zone

The conversion XA and residence time data are collected for zero order liquid phase reaction in a stirred tank reactor. Which of the following will be a straight line? (A) XA Vs . τ (B) XA Vs ln τ (C) XA /(1 - XA )Vs τ (D) XA (1 - XA )Vs τ

Description : The conversion XA and residence time data are collected for zero order liquid phase reaction in a stirred tank reactor. Which of the following will be a straight line? (A) XA Vs . τ (B) XA Vs ln τ (C) XA /(1 - XA )Vs τ (D) XA (1 - XA )Vs τ

Last Answer : (A) XA Vs . τ

The exit age distribution of a fluid leaving a vessel (denoted by E) is used to study the extent of non-ideal flow in the vessel. The value of ∫∞ 0 E.dt is (A) 0 (B) 1 (C) ∞ (D) √2π

Description : The exit age distribution of a fluid leaving a vessel (denoted by E) is used to study the extent of non-ideal flow in the vessel. The value of ∫∞ 0 E.dt is (A) 0 (B) 1 (C) ∞ (D) √2π

Last Answer : (B) 1

The exit age distribution of fluid leaving a vessel is used to know the (A) Activation energies of a reaction (B) Reaction mechanism (C) Extent of non-ideal flow in the vessel (D) None of these

Description : The exit age distribution of fluid leaving a vessel is used to know the (A) Activation energies of a reaction (B) Reaction mechanism (C) Extent of non-ideal flow in the vessel (D) None of these

Last Answer : (C) Extent of non-ideal flow in the vessel

Space time equals the mean residence time (A) When the density of the reaction mixture is constant (B) For large diameter tubular reactor (C) For narrow diameter tubular reactor (D) For CSTR

Description : Space time equals the mean residence time (A) When the density of the reaction mixture is constant (B) For large diameter tubular reactor (C) For narrow diameter tubular reactor (D) For CSTR

Last Answer : (A) When the density of the reaction mixture is constant

The conversion for a first order liquid phase reaction. A → B in a CSTRis 50%. If another CSTR of the same volume is connected in series, then the % conversion at the exit of the second reactor will be (A) 60 (B) 75 (C) 90 (D) 100

Description : The conversion for a first order liquid phase reaction. A → B in a CSTRis 50%. If another CSTR of the same volume is connected in series, then the % conversion at the exit of the second reactor will be (A) 60 (B) 75 (C) 90 (D) 100

Last Answer : (B) 75

The 'E' curve for a non-ideal reactor defines the fraction of fluid having age between t and t + dt (A) At the inlet (B) At the outlet (C) In the reactor (D) Averaged over the inlet and outlet

Description : The 'E' curve for a non-ideal reactor defines the fraction of fluid having age between t and t + dt (A) At the inlet (B) At the outlet (C) In the reactor (D) Averaged over the inlet and outlet

Last Answer : (B) At the outlet

Pick out the wrong statement. (A) Exit age description function (E) and internal age distribution function (I) are related as, E = -(dI/dθ) (B) Chemisorption studies are useful in the determination of catalyst surface area and pore size distribution (C) A higher temperature favours the reaction of higher activation energy (D) A catalyst increases the potential energy barrier over which the reactants must pass to form products

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Last Answer : (D) A catalyst increases the potential energy barrier over which the reactants must pass to form products

.In case of a hollow shaft the average torsional energy/unit volume is given by a. (τ2/4C) x (D2+d2/D2) b. (τ2/C) x (D2+d2/D2) c. (τ2/4C) x (D+d/D2) d. (τ/C) x (D2+d2/D2)

Description : .In case of a hollow shaft the average torsional energy/unit volume is given by a. (τ2/4C) x (D2+d2/D2) b. (τ2/C) x (D2+d2/D2) c. (τ2/4C) x (D+d/D2) d. (τ/C) x (D2+d2/D2)

Last Answer : a. (τ2/4C) x (D2+d2/D2)

Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion. (A) Decrease (B) Increase (C) No change (D) Either (A) or (B), depends on the type of reaction

Description : Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion. (A) Decrease (B) Increase (C) No change (D) Either (A) or (B), depends on the type of reaction

Last Answer : (C) No change

In the relation ( T/J = Gθ/L = τ/ R), the letter G denotes modulus of ______ a. elasticity b. plasticity c. rigidity d. resilience

Description : In the relation ( T/J = Gθ/L = τ/ R), the letter G denotes modulus of ______ a. elasticity b. plasticity c. rigidity d. resilience

Last Answer : c. rigidity

The relation governing the torsional torque in circular shafts is a. T/r=τ/l=Gθ/J b. T/J=τ/r=Gθ/l c. T/J=τ/l=Gθ/r d. T/l=τ/r=Gθ/J

Description : The relation governing the torsional torque in circular shafts is a. T/r=τ/l=Gθ/J b. T/J=τ/r=Gθ/l c. T/J=τ/l=Gθ/r d. T/l=τ/r=Gθ/J

Last Answer : b. T/J=τ/r=Gθ/l

Pick out the wrong statement. (A) The vessel dispersion number (D/UL) for plug flow and mixed flow approaches zero and infinity respectively (B) Space time in a flow reactor is a measure of its capacity and is equal to the residence time when the density of reaction mixture is constant (C) Mixed reactor is always smaller than the plug flow reactor for all positive reaction orders for a particular duty (D) In an ideal tubular flow reactor, mixing takes place in radial direction and there is no mixing in longitudinal direction

Description : Pick out the wrong statement. (A) The vessel dispersion number (D/UL) for plug flow and mixed flow approaches zero and infinity respectively (B) Space time in a flow reactor is a ... ideal tubular flow reactor, mixing takes place in radial direction and there is no mixing in longitudinal direction

Last Answer : (C) Mixed reactor is always smaller than the plug flow reactor for all positive reaction orders for a particular duty

Pick out the wrong statement. (A) 'Hold back' is defined as the fraction of material that stays longer than the mean residence time (B) Study of non-ideal flow reactor is done experimentally by stimulus￾response technique (C) For studying a chemical reaction, it is desirable to monitor the reactants during initial stages and the products during the final stages of reaction (D) A batch reactor cannot be used to study the kinetics of catalytic reaction

Description : Pick out the wrong statement. (A) 'Hold back' is defined as the fraction of material that stays longer than the mean residence time (B) Study of non-ideal flow reactor is done experimentally ... final stages of reaction (D) A batch reactor cannot be used to study the kinetics of catalytic reaction

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In an ideal mixed reactor (at steady state), the (A) Space time is equivalent to holding time for constant density systems (B) Composition throughout the reactor remains same (C) Exit stream has the same composition as the fluid within the reactor (D) All (A), (B) and (C)

Description : In an ideal mixed reactor (at steady state), the (A) Space time is equivalent to holding time for constant density systems (B) Composition throughout the reactor remains same (C) Exit stream has the same composition as the fluid within the reactor (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Pick out the wrong statement. (A) For a first order consecutive reaction, a tubular flow reactor as compared to a stirred tank reactor provides higher overall selectivity(B) For an ideal mixed reactor at steady state, the exit stream has the samecomposition as fluid within the reactor and the space time is equivalent toholding time for constant density system(C) Plug flow reactor (PFR) is always smaller than mixed reactor for allpositive reaction orders for a particular duty(D) Reaction rate does not decrease appreciably as the reaction proceeds incase of an autocatalytic reaction

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Last Answer : (A) For a first order consecutive reaction, a tubular flow reactor as compared to a stirred tank reactor provides higher overall selectivity

Air enters an adiabatic compressor at 300K. The exit temperature for a compression ratio of 3, assuming air to be an ideal gas (Y = Cp/Cv = 7/5) and the process to be reversible, is (A) 300 × (32/7) (B) 300 × (33/5) (C) 300 × (333/7) (D) 300 × (35/7)

Description : Air enters an adiabatic compressor at 300K. The exit temperature for a compression ratio of 3, assuming air to be an ideal gas (Y = Cp/Cv = 7/5) and the process to be reversible, is (A) 300 × (32/7) (B) 300 × (33/5) (C) 300 × (333/7) (D) 300 × (35/7)

Last Answer : A) 300 × (32/7)

f the mean and the median pertaining to a certain character of a population are of the same value, the following is most likely to occur (a) a bi-modal distribution (b) a T-shaped curve (c) a skewed curve (d) a normal distribution.

Description : f the mean and the median pertaining to a certain character of a population are of the same value, the following is most likely to occur (a) a bi-modal distribution (b) a T-shaped curve (c) a skewed curve (d) a normal distribution.

Last Answer : (d) a normal distribution.

Maximum principal stress is equal to (a) (σx + σy)/2 + [ (σx –σy) 2 + τ 2 ] 0.5 (b) (σx + σy)/2 + 0.5 [ (σx –σy) 2 + τ 2 ] 0.5 (c) (σx + σy)/2 + 0.5 [ (σx –σy) 2 + 4τ 2 ] 0.5 (d) None

Description : Maximum principal stress is equal to (a) (σx + σy)/2 + [ (σx –σy) 2 + τ 2 ] 0.5 (b) (σx + σy)/2 + 0.5 [ (σx –σy) 2 + τ 2 ] 0.5 (c) (σx + σy)/2 + 0.5 [ (σx –σy) 2 + 4τ 2 ] 0.5 (d) None

Last Answer : (c) (σx + σy)/2 + 0.5 [ (σx –σy) 2 + 4τ 2 ] 0.5

Symbols for principal stresses are a. Firstly σ, τ & γ b. Secondly σ 1 , σ 2 & σ 3

Description : Symbols for principal stresses are a. Firstly σ, τ & γ b. Secondly σ 1 , σ 2 & σ 3

Last Answer : b. Secondly σ 1 , σ 2 & σ 3

The magnitude of maximum shear stress is (a) ± (1/2)[ ((σx –σy) 2 + 4 τ 2 )) 0.5 ] (b) ± (1/2)[ (1/2)((σx –σy) 2 + 4 τ 2 )) 0.5 ] (c) ± (1/2)[ ((1/2)(σx –σy) 2 + 4 τ 2 )) 0.5 ] (d) None

Description : The magnitude of maximum shear stress is (a) ± (1/2)[ ((σx –σy) 2 + 4 τ 2 )) 0.5 ] (b) ± (1/2)[ (1/2)((σx –σy) 2 + 4 τ 2 )) 0.5 ] (c) ± (1/2)[ ((1/2)(σx –σy) 2 + 4 τ 2 )) 0.5 ] (d) None

Last Answer : (a) ± (1/2)[ ((σx –σy) 2 + 4 τ 2 )) 0.5 ]

The magnitude of principal stresses due to complex stresses is (a) (1/2)[ (σ x + σ y ) ± ((σ x –σ y ) 2 + 4 τ 2 )) 0.5 ] (b) (1/2)[ (σx + σy) ± (1/2)((σx –σy) 2 + 4 τ 2 )) 0.5 ] (c) (1/2)[ (σx + σy) ± ((1/2)(σx –σy) 2 + 4 τ 2 )) 0.5 ]

Description : The magnitude of principal stresses due to complex stresses is (a) (1/2)[ (σ x + σ y ) ± ((σ x –σ y ) 2 + 4 τ 2 )) 0.5 ] (b) (1/2)[ (σx + σy) ± (1/2)((σx –σy) 2 + 4 τ 2 )) 0.5 ] (c) (1/2)[ (σx + σy) ± ((1/2)(σx –σy) 2 + 4 τ 2 )) 0.5 ]

Last Answer : (a) (1/2)[ (σ x + σ y ) ± ((σ x –σ y ) 2 + 4 τ 2 )) 0.5 ]

The graphical method of Mohr's circle represents shear stress (τ) on ______ a. X-axis b. Y-axis c. Z-axis d. None of the above

Description : The graphical method of Mohr's circle represents shear stress (τ) on ______ a. X-axis b. Y-axis c. Z-axis d. None of the above

Last Answer : b. Y-axis

Which of the following formulae is used to calculate tangential stress, when a member is subjected to stress in mutually perpendicular axis and accompanied by a shear stress? a. [(σ x – σ y )/2 ]sin θ – τ cos 2θ b. [(σ x – σ y )/2 ]– τ cos 2θ c. [(σ x – σ y )/2 ]sin θ – τ 2 cos θ d. None of the above

Description : Which of the following formulae is used to calculate tangential stress, when a member is subjected to stress in mutually perpendicular axis and accompanied by a shear stress? a. [(σ x - σ y )/2 ]sin θ - τ cos 2θ b. [(σ x - ... τ cos 2θ c. [(σ x - σ y )/2 ]sin θ - τ 2 cos θ d. None of the above

Last Answer : c. [(σ x – σ y )/2 ]sin θ – τ 2 cos θ

With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be (A) Higher in P.F. reactor (B) Higher in CSTR (C) Same in both the reactors (D) Data insufficient; can't be predicted

Description : With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be (A) Higher in P.F. reactor (B) Higher in CSTR (C) Same in both the reactors (D) Data insufficient; can't be predicted

Last Answer : (A) Higher in P.F. reactor

In a CSTR __________ varies with time. (A) Reaction rate (B) Concentration (C) Both (A) & (B) (D) Neither (A) nor (B)

Description : In a CSTR __________ varies with time. (A) Reaction rate (B) Concentration (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (D) Neither (A) nor (B)

For the liquid phase zero order irreversible reaction A → B, the conversion of A in a CSTR is found to be 0.3 at a space velocity of 0.1min -1 . What will be the conversion for a PFR with a space velocity of 0.2 min -1? Assume that all the other operating conditions are the same for CSTR and PFR. (A) 0.15(B) 0.30 (C) 0.60 (D) 0.90

Description : For the liquid phase zero order irreversible reaction A → B, the conversion of A in a CSTR is found to be 0.3 at a space velocity of 0.1min -1 . What will be the conversion for a PFR with a space velocity of 0.2 min ... conditions are the same for CSTR and PFR. (A) 0.15 (B) 0.30 (C) 0.60 (D) 0.90

Last Answer : (C) 0.60

A first order reaction requires two unequal sized CSTR. Which of thefollowing gives higher yield?(A) Large reactor followed by smaller one(B) Smaller reactor followed by larger one(C) Either of the arrangement (A) or (B) will give the same yield(D) Data insufficient, can't be predicted

Description : A first order reaction requires two unequal sized CSTR. Which of thefollowing gives higher yield? (A) Large reactor followed by smaller one (B) Smaller reactor followed by larger one (C) Either of the arrangement (A) or (B) will give the same yield (D) Data insufficient, can't be predicted

Last Answer : (C) Either of the arrangement (A) or (B) will give the same yield

For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a (A) Batch reactor is preferred over a single CSTR for high yield (B) Tubular reactor is preferred over a single CSTR for high yield (C) Both (A) and (B) (D) Single CSTR is the most suitable

Description : For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a (A) Batch reactor is preferred over a ... a single CSTR for high yield (C) Both (A) and (B) (D) Single CSTR is the most suitable

Last Answer : (C) Both (A) and (B)

Exothermic reactions are best carried out in (A) A CSTR (B) CSTR in series (C) A plug flow reactor followed by CSTR (D) CSTR followed by a plug flow reactor

Description : Exothermic reactions are best carried out in (A) A CSTR (B) CSTR in series (C) A plug flow reactor followed by CSTR (D) CSTR followed by a plug flow reactor

Last Answer : (D) CSTR followed by a plug flow reactor

Backmixing is most predominant in (A) A well stirred batch reactor (B) A plug-flow reactor (C) A single CSTR (D) CSTR's connected in series

Description : Backmixing is most predominant in (A) A well stirred batch reactor (B) A plug-flow reactor (C) A single CSTR (D) CSTR's connected in series

Last Answer : (C) A single CSTR

The most unsuitable reactor for carrying out reactions in which high reactant concentration favours high yields is (A) Backmix reactor (B) Plug flow reactor (C) Series of CSTR (D) PFR in series

Description : The most unsuitable reactor for carrying out reactions in which high reactant concentration favours high yields is (A) Backmix reactor (B) Plug flow reactor (C) Series of CSTR (D) PFR in series

Last Answer : A) Backmix reactor

A reactor is generally termed as an autoclave, when it is a (A) High pressure batch reactor (B) Atmospheric pressure tank reactor (C) High pressure tubular reactor (D) Atmospheric pressure CSTR(

Description : A reactor is generally termed as an autoclave, when it is a (A) High pressure batch reactor (B) Atmospheric pressure tank reactor (C) High pressure tubular reactor (D) Atmospheric pressure CSTR

Last Answer : A) High pressure batch reactor

For an autocatalytic reactor, the suitable reactor set up is(A) P.F. reactors in series (B) CSTR in series (C) CSTR followed by P.F. reactor (D) P.F. reactor followed by CSTR

Description : For an autocatalytic reactor, the suitable reactor set up is (A) P.F. reactors in series (B) CSTR in series (C) CSTR followed by P.F. reactor (D) P.F. reactor followed by CSTR

Last Answer : (C) CSTR followed by P.F. reactor

A first order reaction requires two equal sized CSTR. The conversion is (A) Less when they are connected in series (B) More when they are connected in series (C) More when they are connected in parallel (D) Same whether they are connected in series or in parallel

Description : A first order reaction requires two equal sized CSTR. The conversion is (A) Less when they are connected in series (B) More when they are connected in series (C) More when they are connected in parallel (D) Same whether they are connected in series or in parallel

Last Answer : (B) More when they are connected in series

For series reaction, the relative yield (A) Is always greater for plug-flow reactor than for the single CSTR of the same volume (B) Statement in (A) is wrong (C) Decreases with increasing conversion (D) Both (A) and (C) hold good

Description : For series reaction, the relative yield (A) Is always greater for plug-flow reactor than for the single CSTR of the same volume (B) Statement in (A) is wrong (C) Decreases with increasing conversion (D) Both (A) and (C) hold good

Last Answer : (D) Both (A) and (C) hold good

For identical flow rate and feed composition, X plug flow reactors (PER) in series with a total volume V gives the same conversion as single (A) CSTR of volume V (B) PFR of volume V (C) CSTR of volume V/X (D) PFR of volume V/X

Description : For identical flow rate and feed composition, X plug flow reactors (PER) in series with a total volume V gives the same conversion as single (A) CSTR of volume V (B) PFR of volume V (C) CSTR of volume V/X (D) PFR of volume V/X

Last Answer : (B) PFR of volume V

Autocatalytic reactions are best carried out in a (A) CSTR (B) CSTR in series (C) Plug flow reactor (D) Recycle reactor

Description : Autocatalytic reactions are best carried out in a (A) CSTR (B) CSTR in series (C) Plug flow reactor (D) Recycle reactor

Last Answer : (D) Recycle reactor

The preferred reacting system for oxidation of o-xylene to phthalic anhydride is (A) Jacketed liquid phase CSTR (B) Jacketed steam heated multitubular reactor (C) Multitubular reactor with cooling (D) Multistage multitubular reactor with interstage cooling

Description : The preferred reacting system for oxidation of o-xylene to phthalic anhydride is (A) Jacketed liquid phase CSTR (B) Jacketed steam heated multitubular reactor (C) Multitubular reactor with cooling (D) Multistage multitubular reactor with interstage cooling

Last Answer : (A) Jacketed liquid phase CSTR

The following gas phase reactions are carried out isothermally in a CSTR. A → 2R ; r1 = k1pA ; k1 = 20mole/(sec.m3 bar)A → 3S ; r2 = k2 pA ;k2 = 40mole/(sec.m3.bar)What is the maximum possible value of FR(mole/sec.)?(A) 1/3(B) 1/2(C) 2/3(D) 2

Description : The following gas phase reactions are carried out isothermally in a CSTR. A → 2R ; r1 = k1pA ; k1 = 20mole/(sec.m3 bar) A → 3S ; r2 = k2 pA ; k2 = 40mole/(sec.m3 .bar) What is the maximum possible value of FR(mole/sec.)? (A) 1/3 (B) 1/2 (C) 2/3 (D) 2

Last Answer : (C) 2/3

What is the dispersion number for a CSTR? (A) 0 (B) 1 (C) < 1 (D) ∞

Description : What is the dispersion number for a CSTR? (A) 0 (B) 1 (C) < 1 (D) ∞

Last Answer : (D) ∞

An irreversible first order reaction is being carried out in a CSTR and PFR of same volume. The liquid flow rates are same. The relative conversion will (A) Be more in CSTR than in PFR (B) Be more in PFR than in CSTR (C) Be same in both cases (D) Depend on the temperature

Description : An irreversible first order reaction is being carried out in a CSTR and PFR of same volume. The liquid flow rates are same. The relative conversion will (A) Be more in CSTR than in PFR (B) Be more in PFR than in CSTR (C) Be same in both cases (D) Depend on the temperature

Last Answer : (B) Be more in PFR than in CSTR

An isothermal aqueous phase reversible reaction, P ⇌ R, is to be carried out in a mixed flow reactor. The reaction rate in k.mole/m3 .h is given by, r = 0.5CP - 0.125CR. A stream containing only P enters the reactor. The residence time required (in hours) for 40% conversion of P is (A) 0.80 (B) 1.33 (C) 1.60 (D) 2.67

Description : An isothermal aqueous phase reversible reaction, P ⇌ R, is to be carried out in a mixed flow reactor. The reaction rate in k.mole/m3 .h is given by, r = 0.5CP - 0.125CR. A stream containing only P enters the reactor. The ... (in hours) for 40% conversion of P is (A) 0.80 (B) 1.33 (C) 1.60 (D) 2.67

Last Answer : (C) 1.60

The distribution of particle speeds in an ideal gas at a given temperature.  a. velocity of propagation  b. escape velocity  c. Maxwell speed Distribution  d. terminal velocity

Description : The distribution of particle speeds in an ideal gas at a given temperature.  a. velocity of propagation  b. escape velocity  c. Maxwell speed Distribution  d. terminal velocity

Last Answer : Maxwell speed Distribution

The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, Kc & Km are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving force. and, Kp= M.T.C. for diffusion of a gas through a stagnant inert gas with pressure as driving force.) (A) Kc = Kp = Km (B) Kc = Kp /RT = Km . RT/P (C) Kc = Kp . RT = Km . RT/p (D) None of these

Description : The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, Kc & Km are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving ... (C) Kc = Kp . RT = Km . RT/p (D) None of these

Last Answer : (C) Kc = Kp . RT = Km . RT/p

Pick out the wrong statement. (A) The operating line always lies above the equilibrium solubility curve in case of a single component absorber (B) The operating line always lies below the equilibrium solubility curve in case of a single component stripper (C) The operating pressure in solvent extraction system should be below vapor pressures of all components (D) The solubility of a particular gas in ideal solution in any solvent is always the same

Description : Pick out the wrong statement. (A) The operating line always lies above the equilibrium solubility curve in case of a single component absorber (B) The operating line always lies below the equilibrium ... (D) The solubility of a particular gas in ideal solution in any solvent is always the same

Last Answer : (C) The operating pressure in solvent extraction system should be below vapor pressures of all components

In a P-V diagram (for an ideal gas), an isothermal curve will coincide within adiabatic curve (through a point), when (A) Cp < Cv (B) Cp = Cv (C) Cp > Cv (D) C ≥ Cv

Description : In a P-V diagram (for an ideal gas), an isothermal curve will coincide within adiabatic curve (through a point), when (A) Cp < Cv (B) Cp = Cv (C) Cp > Cv (D) C ≥ Cv

Last Answer : (B) Cp = Cv