The same volume of all gases is representative of their (A) Specific gravities (B) Densities (C) Gas characteristic constants

The same volume of all gases is representative of their
(A) Specific gravities
(B) Densities
(C) Gas characteristic constants
by

1 Answer

Answer :

Option D
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The same volume of all gases would represent their  (a) densities  (b) specific weights  (c) molecular weights  (d) gas characteristic constants  (e) specific gravities.

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Last Answer : Answer : c

Which of the following is true for Virial equation of state? (A) Virial co-efficients are universal constants (B) Virial co-efficients 'B' represents three body interactions (C) Virial co-efficients are function of temperature only (D) For some gases, Virial equations and ideal gas equations are the same

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Last Answer : (C) Virial co-efficients are function of temperature only

Ore concentration by jigging is based on the difference in the __________ of the particles. (A) Specific gravities (B) Wettability (C) Shape (D) None of these

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Pick out the wrong statement. (A) Surface tension of a liquid is because of the difference in magnitude of adhesive & cohesive forces(B) A hydrometer used for the determination of specific gravities of liquidsworks on the principle of buoyant forces(C) In case of unsteady fluid flow, the velocity at any given point does notchange with time(D) Turbulent fluid flow is characterised by the rapid fluctuation ofinstantaneous pressure & velocity at a poin

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The vapour densities of two gases are in the ratio of `1 : 3 ` . Their molecular masses are in the ratio of : -

Description : The vapour densities of two gases are in the ratio of `1 : 3 ` . Their molecular masses are in the ratio of : -

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According to Avogadro’s Hypothesis  (a) the molecular weights of all the perfect gases occupy the same volume under same conditions of pressure and temperature  (b) the sum of partial pressure of mixture of two gases is sum of the two  (c) product of the gas constant and the molecular weight of an ideal gas is constant  (d) gases have two values of specific heat  (e) all systems can be regarded as closed systems.

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Last Answer : Answer : a

At a given value of E/R (ratio of activation energy and gas constant), the ratio of the rate constants at 500°K and 400°K is 2, if Arrhenius law is used. What will be this ratio, if transition state theory is used with the same value of ‘E/R’? (A) 1.6 (B) 2 (C) 2.24 (D) 2.5

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Last Answer : (D) 2.5

According to kinetic theory of gases, the absolute zero temperature is attained when  (a) volume of the gas is zero  (b) pressure of the gas is zero  (c) kinetic energy of the molecules is zero  (d) specific heat of gas is zero  (e) mass is zero.

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Last Answer : Answer : c

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Last Answer : (A) Propane and acetylene

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Last Answer : (D) Both (B) & (C)

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Last Answer : D) B.F gas and coke oven gas

Under which of the following conditions does the behavior of a real gas resemble that of an ideal gas? Is it: w) under all conditions of temperature and pressure x) only at very high pressure y) only when the gas is near condensation z) only at low densities when the molecules are relatively far apart

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Last Answer : ANSWER: Z -- ONLY AT LOW DENSITIES WHEN THE MOLECULES ARE RELATIVELY FAR APART

Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure  (a) enthalpy  (b) volume  (c) mass  (d) entropy  (e) specific volume.

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Last Answer : Answer : b

To convert volumetric analysis to gravimetric analysis, the relative volume of each constituent of the flue gases is  (a) divided by its molecular weight  (b) multiplied by its molecular weight  (c) multiplied by its density  (d) multiplied by its specific weight  (e) divided by its specific weight.

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Last Answer : Answer : b

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Sorting classifiers employing differential settling methods forseparation of particles make use of the differences in their(A) Particle sizes(B) Densities(C) Terminal velocities(D) None of these

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The value of the product of molecular weight and the gas characteristic constant for all the gases in S.I. units is  (a) 29.27 J/kmol°K  (b) 83.14J/kmol°K  (c) 848J/kmol°K  (d) All J/kmol °K  (e) 735 J/kmol °K.

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Last Answer : Answer : b

The value of the product of molecular weight and the gas characteristic constant for all the gases in M.K.S. unit is  (a) 29.27 kgfm/mol°K  (b) 8314kgfm/mol°K  (c) 848kgfm/mol°K  (d) 427kgfm/mol°K  (e) 735 kgfm/mol°K.

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Last Answer : Answer : c

The statement that molecular weights of all gases occupy the same volume is known as  (a) Avogadro’s hypothesis  (b) Dalton’s law  (c) Gas law  (d) Law of thermodynamics  (e) Joule’s law.

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ales force structure in which a sales representative works to sell specific items of product line is classified as A. indirect sales force structure B. territorial sales force structure C. customer sales force structure D. product sales force structure

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In a simple bending theory, one of the assumption is that the material of the beam is isotropic. This assumption means that the a. normal stress remains constant in all directions b. normal stress varies linearly in the material c. elastic constants are same in all the directions d. elastic constants varies linearly in the material

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The constants (Kb, Kr and Kk) used in the laws of crushing (i.e., Bond's law, Rittinger's law and Kick's law) depend upon the (A) Feed material (B) Type of crushing machine (C) Both (A) & (B) (D) Neither (A) nor (B)

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Last Answer : (B) 2 to 5°

If a force greater than that of gravity is used to separate solids & fluidsof different densities, the process is termed as the(A) Sedimentation(B) Flocculation(C) Dispersion(D) Centrifugation

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Solid particles of different densities are separated by (A) Filters (B) Thickness (C) Cyclones (D) Sorting classifier

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Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called (A) Classification (B) Froth floatation (C) Thickening (D) Clarification

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Last Answer : (A) Classification

The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the (A) Inverse of fluid viscosity (B) Square of particle size (C) Difference in the densities of the particle & fluid (D) All (A), (B) and (C)

Description : The terminal velocity of a solid spherical particle falling through a stationary fluid mass in the Stoke's law range is proportional to the (A) Inverse of fluid viscosity (B) Square of particle size (C) Difference in the densities of the particle & fluid (D) All (A), (B) and (C)

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

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Last Answer : (C) E + ΔHA - ΔHR )

The ratio of equilibrium constants (Kp2/Kp1) at two different temperatures is given by (A) (R/∆H) (1/T1- 1/T2) (B) (∆H/R) (1/T1- 1/T2) (C) (∆H/R) (1/T2- 1/T1) (D) (1/R) (1/T1- 1/T2)

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Last Answer : (B) (∆H/R) (1/T1- 1/T2)

Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)? (A) E = 2G (1 + v) (B) E = G (1 + v) (C) E = G (1 + v)/2 (D) E = 2G (1 + 2v)

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Last Answer : (A) E = 2G (1 + v)

The thickness of oxide film is y at time t. If K1, K2 and K3 are the temperature dependent constants, the parabolic law of oxidation is given by (A) y2 = 2k1t + k2 (B) y = k1 ln (k2t + k3) (C) y = k1 t + k2 (D) y = k1t3 + k2

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Last Answer : Option A

If two gases have same reduced temperature and reduced pressure, then they will have the same (A) Volume (B) Mass (C) Critical temperature (D) None of these

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Gas thermometers are more sensitive than the liquid thermometers because the gases – (1) have large coefficient of expansion (2) are lighter (3) have low specific heat (4) have high specific heat

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Gas thermometers are more sensitive than the liquid thermometers because of the gases - (1) have low specific heat (2) have high specific heat (3) have large coefficient of expansion (4) are lighter

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Calculate the recoverable waste heat (Q, in kCal/hour) from flue gases using the followingparameters: V (flow rate of the substance) 2000 m3/hr r (density of the flue gas): 0.9 kg/m3 Cp (specific heat of the substance): 0.20 kCal/kg oC DT (temperature difference): 120 oC h (recovery factor): 50% a. 21600 b. 43200 c. 25600 d. 34000

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Last Answer : 21600

Gas thermometers are more sensitive than the liquid thermometers because the gases (1) have large coefficient of expansion (2) are lighter (3) have low specific heat (4) have high,specific heat

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According to Avogadro’s law, for a given pressure and temperature, each molecule of a gas  (a) occupies volume proportional to its molecular weight  (b) occupies volume proportional to its specific weight  (c) occupies volume inversely proportional to its molecular weight  (d) occupies volume inversely proportional to its specific weight  (e) occupies same volume.

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Last Answer : Answer : e

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Fill in the blanks- _____and _____ densities should be found out, in order to get a better insight into the human-land ratio. -Geography

Description : Fill in the blanks- _____and _____ densities should be found out, in order to get a better insight into the human-land ratio. -Geography

Last Answer : (c) Physiological and Agricultural