How much is the work done in isochoric process ?

How much is the work done in isochoric process ?
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Zero.
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Isochoric process is one in which  (a) free expansion takes place  (b) very little mechanical work is done by the system  (c) no mechanical work is done by the system  (d) all parameters remain constant

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Last Answer : Answer : c

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Description : 195.Which parameter remains constant in isochoric process ?

Last Answer : Volume.

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An adiabatic process in which there is no change in system enthalpy but for which there is a significant decrease in pressure is called _____.  A. Isochoric process  B. Isobaric process  C. Throttling process  D. Quasistatic process

Description : An adiabatic process in which there is no change in system enthalpy but for which there is a significant decrease in pressure is called _____.  A. Isochoric process  B. Isobaric process  C. Throttling process  D. Quasistatic process

Last Answer : Throttling process

A process during which entropy remains constant is called ______ process  A. Isometric  B. Isochoric  C. Isobaric  D. Isentropic

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What is a process during which the specific volume remains constant?  A. Isobaric process  B. Isothermal process  C. Isochoric or isometric process  D. Isovolumetric process

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What is a process during which the temperature remains constant?  A. Isobaric process  B. Isothermal process  C. Isochoric process  D. Isometric process

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A cycle tyre bursts suddenly. This represents an – (1) Isothermal process (2) Adiabatic process (3) Isochoric process (4) Isoboric process

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Name the state variables that remain constant in isobaric and isochoric process.

Description : Name the state variables that remain constant in isobaric and isochoric process.

Last Answer : Ans. Pressure and Volume .

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Last Answer : (A) Isothermal

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Description : Heating of water under atmospheric pressure is an __________ process. (A) Isochoric (B) Isobaric (C) Adiabatic (D) Isothermal

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An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section. (A) Adiabatic (B) Isothermal (C) Isentropic (D) Isochoric

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A cycle tyre bursts suddenly. This represents an : (1) Isothermal process (2) Adiabatic process (3) Isochoric process (4) Isoboric process

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Last Answer : Adiabatic process

Draw P-V and T-S diagram for isochoric process.

Description : Draw P-V and T-S diagram for isochoric process.

Last Answer : Isochoric Process: 

Represent Isobaric, Isochoric, Isothermal, Adiabatic process on P-V and T-S diagram.

Description : Represent Isobaric, Isochoric, Isothermal, Adiabatic process on P-V and T-S diagram.

Last Answer : Isobaric process Isothermal process Isochoric process Adiabatic process:

Represent Isochoric Process on P-V and T-S chart.

Description : Represent Isochoric Process on P-V and T-S chart.

Last Answer : Figure: P-V and T-S representation of Isochoric process

The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction

Description : The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction

Last Answer : (1) Adiabatic compression and rarefaction Explanation: Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the ... . Through solids, however, it can be transmitted as both longitudinal waves and transverse waves.

The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction

Description : The propagation of sound waves in a gas involves – (1) Adiabatic compression and rarefaction (2) Isothermal compression and rarefaction (3) Isochoric compression and rarefaction (4) Isobaric compression and rarefaction

Last Answer : (1) Adiabatic compression and rarefaction Explanation: Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within ... is transmitted through gases, plasma, and liquids as longitudinal waves, also called compression waves.

An assembler is a utility program that performs: a. Isometric translation b. Isomorphic translation c. Isochoric translation d. None of these

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Last Answer : b. Isomorphic translation

A Carnot cycle consists of the following steps: (A) Two isothermal and two isentropic (B) Two isobaric and two isothermal (C) Two isochoric and two isobaric (D) Two isothermals and two isochoric

Description : A Carnot cycle consists of the following steps: (A) Two isothermal and two isentropic (B) Two isobaric and two isothermal (C) Two isochoric and two isobaric (D) Two isothermals and two isochoric

Last Answer : A) Two isothermal and two isentropic

The propagation of sound waves in a gas involves (1) adiabatic compression and rarefaction (2) isothermal compression and rarefaction (3) isochoric compression and rarefaction (4) isobaric compression and rarefaction

Description : The propagation of sound waves in a gas involves (1) adiabatic compression and rarefaction (2) isothermal compression and rarefaction (3) isochoric compression and rarefaction (4) isobaric compression and rarefaction

Last Answer : adiabatic compression and rarefaction

What is polytropic process ? Under what conditions it approaches isobaric, isothermal, and isometric process ? In which reversible process no work is done ?

Description : What is polytropic process ? Under what conditions it approaches isobaric, isothermal, and isometric process ? In which reversible process no work is done ?

Last Answer : A polytropic process is one that follows the equation pun = constant (index n may have values from – oc to + oo. This process approaches isobaric when n = 0, isothermal when n = 1, and isometric when n = . No work is done in isometric process.

Work done by a/an __________ process is determined by ∫p. dv (A) Adiabatic (B) Quasi-static (C) Isothermal (D) Isentropic

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Last Answer : (B) Quasi-static

Which of the following relations is not applicable in a free expansion process?  a. Heat is rejected to zero  b. Work done is zero  c. Change in temperature is zero  d. Heat supplied is zero

Description : Which of the following relations is not applicable in a free expansion process?  a. Heat is rejected to zero  b. Work done is zero  c. Change in temperature is zero  d. Heat supplied is zero

Last Answer : Change in temperature is zero

During throttling process  (a) heat exchange does not take place  (b) no work is done by expanding steam  (c) there is no change of internal energy of steam  (d) all of the above  (e) entropy decreases.

Description : During throttling process  (a) heat exchange does not take place  (b) no work is done by expanding steam  (c) there is no change of internal energy of steam  (d) all of the above  (e) entropy decreases.

Last Answer : Answer : d

If a system after undergoing a series of processes, returns to the initial state then  (a) process is thermodynamically in equilibrium  (b) process is executed in closed system cycle  (c) its entropy will change due to irreversibility  (d) sum of heat and work transfer will be zero  (e) no work will be done by the system.

Description : If a system after undergoing a series of processes, returns to the initial state then  (a) process is thermodynamically in equilibrium  (b) process is executed in closed system cycle  (c) its entropy will ... sum of heat and work transfer will be zero  (e) no work will be done by the system.

Last Answer : Answer : d

According to first law of thermodynamics  (a) work done by a system is equal to heat transferred by the system  (b) total internal energy of a system during a process remains constant  (c) internal energy, enthalpy and entropy during a process remain constant  (d) total energy of a system remains constant

Description : According to first law of thermodynamics  (a) work done by a system is equal to heat transferred by the system  (b) total internal energy of a system during a process remains constant  ( ... , enthalpy and entropy during a process remain constant  (d) total energy of a system remains constant

Last Answer : Answer : d

A gas is compressed in a cylinder by a movable piston to a volume onehalf its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be  (a) 300 Nm  (b) 300,000 Nm  (c) 30 Nm  (d) 3000 Nm  (e) 30,000 Nm.

Description : A gas is compressed in a cylinder by a movable piston to a volume onehalf its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be  (a) 300 Nm  (b) 300,000 Nm  (c) 30 Nm  (d) 3000 Nm  (e) 30,000 Nm.

Last Answer : Answer : b

In a free expansion process  (a) work done is zero  (b) heat transfer is zero  (c) both (a) and (b) above  (d) work done is zero but heat increases  (e) work done is zero but heat decreases.

Description : In a free expansion process  (a) work done is zero  (b) heat transfer is zero  (c) both (a) and (b) above  (d) work done is zero but heat increases  (e) work done is zero but heat decreases.

Last Answer : Answer : c

In a non-flow reversible process for which p = (- 3V+ 15) x 105N/m2,V changes from 1 m to 2 m3. The work done will be about  (a) 100 xlOO5 joules  (b) lxlO5 joules  (c) 10 xlO5 joules  (d) 10 xlO5 kilo joules  (e) 10xl04ki\ojoules.

Description : In a non-flow reversible process for which p = (- 3V+ 15) x 105N/m2,V changes from 1 m to 2 m3. The work done will be about  (a) 100 xlOO5 joules  (b) lxlO5 joules  (c) 10 xlO5 joules  (d) 10 xlO5 kilo joules  (e) 10xl04ki\ojoules.

Last Answer : Answer : c

Work done is zero for the following process  (a) constant volume  (b) free expansion  (c) throttling  (d) all Of the above  (e) none of the above.

Description : Work done is zero for the following process  (a) constant volume  (b) free expansion  (c) throttling  (d) all Of the above  (e) none of the above.

Last Answer : Answer : d

Work done in an adiabatic process between a given pair of end states depends on  (a) the end states only  (b) particular adiabatic process  (c) the value of index n  (d) the value of heattransferred  (e) mass of the system.

Description : Work done in an adiabatic process between a given pair of end states depends on  (a) the end states only  (b) particular adiabatic process  (c) the value of index n  (d) the value of heattransferred  (e) mass of the system.

Last Answer : Answer : a

Work done in a free expansion process is  (a) + ve  (b) -ve  (c) zero  (d) maximum  (e) minimum.

Description : Work done in a free expansion process is  (a) + ve  (b) -ve  (c) zero  (d) maximum  (e) minimum.

Last Answer : Answer : c

In which layout manufacturing is done according to product's characteristics? a.Process layout b.GT layout c.Product layout d.Both A & B

Description : In which layout manufacturing is done according to product's characteristics? a.Process layout b.GT layout c.Product layout d.Both A & B

Last Answer : d.Both A & B

In which layout manufacturing is done according to machine arrangement a.GT layout b.Product layout c.Process layout d.Hybrid layout

Description : In which layout manufacturing is done according to machine arrangement a.GT layout b.Product layout c.Process layout d.Hybrid layout

Last Answer : c.Process layout

The value for the ΔU of a system is -120 J. If the system is known to have absorbed 420 J of heat, how much work was done?  a. -540 J  b. -640 J  c. -740 J  d. -840 J formula: ΔU = q +w

Description : The value for the ΔU of a system is -120 J. If the system is known to have absorbed 420 J of heat, how much work was done?  a. -540 J  b. -640 J  c. -740 J  d. -840 J formula: ΔU = q +w

Last Answer : -540 J

The law of conservation of mechanical energy is valid a.Irrespective of the nature of force field b.Only in gravitational field c.Only if the total work done by the particle in moving around in a closed trajectory is zero d.Only if the force is tangential to the trajectory e.None of the above

Description : The law of conservation of mechanical energy is valid a.Irrespective of the nature of force field b.Only in gravitational field c.Only if the total work done by the particle in moving around in a closed trajectory is zero d.Only if the force is tangential to the trajectory e.None of the above

Last Answer : c. Only if the total work done by the particle in moving around in a closed trajectory is zero

The work done in sliding a block of weight of 50 kg up a plane inclined at an angle of 30? to the horizontal so that the block is lifted through 1 m ( a.More than 50 kgm b.50 kgm c.Less than 5 kgm d.15 kgm only e.None of the above

Description : The work done in sliding a block of weight of 50 kg up a plane inclined at an angle of 30? to the horizontal so that the block is lifted through 1 m ( a.More than 50 kgm b.50 kgm c.Less than 5 kgm d.15 kgm only e.None of the above

Last Answer : a. More than 50 kgm

A man pulls a cart with 100 N force from rest with an acceleration of 10 m/sec2 for 10 seconds. The work done by him is a.500 KJ b.50.96 KJ c.101.92 KJ d.None of the above e.Tapered bearing

Description : A man pulls a cart with 100 N force from rest with an acceleration of 10 m/sec2 for 10 seconds. The work done by him is a.500 KJ b.50.96 KJ c.101.92 KJ d.None of the above e.Tapered bearing

Last Answer : a. 500 KJ

The torque of 50 Nm is applied on the wheel operating a valve. If the wheel is rotated through two revolutions, work done in Newton-metres is given by a.628 b.107 dynes c.314 d.25 e.100

Description : The torque of 50 Nm is applied on the wheel operating a valve. If the wheel is rotated through two revolutions, work done in Newton-metres is given by a.628 b.107 dynes c.314 d.25 e.100

Last Answer : a. 628

A rope of weight 0.5 kg/m hangs from a drum for a height of 6 m. The work done in winding up the rope will be a.9 kg-m b.3 kg-m c.12 kg-m d.18 kg-m e.6 kg-m

Description : A rope of weight 0.5 kg/m hangs from a drum for a height of 6 m. The work done in winding up the rope will be a.9 kg-m b.3 kg-m c.12 kg-m d.18 kg-m e.6 kg-m

Last Answer : a. 9 kg-m

A man lifts a stone weighting 300 g from the ground to a height of 2m and throws it horizontally with a velocity of 6 m/sec. The work done by the man is a.7.686 J b.11.286 J c.5.886 J d.8.343 J e.Tapered bearing

Description : A man lifts a stone weighting 300 g from the ground to a height of 2m and throws it horizontally with a velocity of 6 m/sec. The work done by the man is a.7.686 J b.11.286 J c.5.886 J d.8.343 J e.Tapered bearing

Last Answer : b. 11.286 J

Work done by a body of mass 100 kg moving along a circular path of radius 2 m with a uniform velocity of 10 m/sec is a.5000 J b.2500 J c.509.68 J d.None of the above e.Tapered bearing

Description : Work done by a body of mass 100 kg moving along a circular path of radius 2 m with a uniform velocity of 10 m/sec is a.5000 J b.2500 J c.509.68 J d.None of the above e.Tapered bearing

Last Answer : d. None of the above

Under what condition the work done in reciprocating compressor will be least ?

Description : Under what condition the work done in reciprocating compressor will be least ?

Last Answer : It is least when compression process approaches isothermal. For this purpose, attempts are made to cool the air during compression.

Which of the following is the work done for a closed reversible isometric system?  a. negative  b. positive  c. zero  d. undefined

Description : Which of the following is the work done for a closed reversible isometric system?  a. negative  b. positive  c. zero  d. undefined

Last Answer : zero