Joule-Thomson co-efficient depends on the

Question

Joule-Thomson co-efficient depends on the

A. Pressure

B. Temperature

C. Both (A) & (B)

D. Neither (A) nor (B)

Share this question with your friends

Show all Chemical Engineering Thermodynamics MCQ

Comment

The thermodynamic law, PV^y = constant, is not applicable in case of

A. Ideal compression of air

B. Free expansion of an ideal gas

C. Adiabatic expansion of steam in a turbine

D. Adiabatic compression of a perfect gas

Discuss this answer

When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change. This is called the

A. Le-Chatelier principle

B. Kopp's rule

C. Law of corresponding state

D. Arrhenius hypothesis

Discuss this answer

At normal boiling point, molar entropy of vaporisation is __________ Joule/K°.mole.

A. 72

B. 92

C. 142

D. 192

Discuss this answer

Measurement of thermodynamic property of temperature is facilitated by __________ law of thermodynamics.

A. 1st

B. Zeroth

C. 3rd

D. None of these

Discuss this answer

Variation of equilibrium pressure with temperature for any two phases of a given substances is given by the __________ equation.

A. Gibbs-Duhem

B. Maxwell's

C. Clapeyron

D. None of these

Discuss this answer

If the internal energy of an ideal gas decreases by the same amount as the work done by the system, then the

A. Process must be isobaric

B. Temperature must decrease

C. Process must be adiabatic

D. Both (B) and (C)

Discuss this answer

For a cyclic process, a fixed ratio between heat and work

A. Always exists

B. May exist

C. Never exists

D. Is difficult to predict

Discuss this answer

For a real gas, the chemical potential is given by

A. RT d ln P

B. RT d ln f

C. R d ln f

D. None of these

Discuss this answer

For an ideal gas, the enthalpy

A. Increases with rise in pressure

B. Decreases with rise in pressure

C. Is independent of pressure

D. Is a path function

Discuss this answer

The work done in isothermal compression compared to that in adiabatic compression will be

A. Less

B. More

C. Same

D. More or less depending upon the extent of work done

Discuss this answer

Absolute zero temperature signifies the

A. Minimum temperature attainable

B. Temperature of the heat reservoir to which a Carnot engine rejects all the heat that is taken in

C. Temperature of the heat reservoir to which a Carnot engine rejects no heat

D. None of these

Discuss this answer

Which of the following is not an equation of state?

A. Bertholet equation

B. Clausius-Clapeyron equation

C. Beattie-Bridgeman equation

D. None of these

Discuss this answer

C_p of a gas at its critical temperature and pressure

A. Becomes zero

B. Becomes infinity

C. Equals 1 kcal/kmol °K

D. Equals 0.24 kcal/kmol °K

Discuss this answer

Gases are cooled in Joule-Thomson expansion, when it is __________ inversion temperature.

A. Below

B. At

C. Above

D. Either 'b' or 'c'

Discuss this answer

Which of the following decreases with increase in pressure?

A. Melting point of ice

B. Melting point of wax

C. Boiling point of liquids

D. None of these

Discuss this answer

Activity co-efficient is a measure of the

A. Departure from ideal solution behaviour

B. Departure of gas phase from ideal gas law

C. Vapour pressure of liquid

D. None of these

Discuss this answer

A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will be __________ c.c.

A. 2.73

B. 28.3

C. 273

D. 283

Discuss this answer

The work done in an adiabatic change in a particular gas depends upon changes in the __________ only.

A. Temperature

B. Specific heat

C. Volume

D. Pressure

Discuss this answer

Critical compressibility factor for all substances

A. Are more or less constant (vary from 0.2 to 0.3)

B. Vary as square of the absolute temperature

C. Vary as square of the absolute pressure

D. None of these

Discuss this answer

An ideal gas is taken around the cycle ABCA as shown in P-V diagram below: The work done by the gas during the cycle is equal to

A. 12 P1V1

B. 6 P1 V1

C. 3 P1V1

D. P1 V1

Discuss this answer

For an ideal gas, the activity co-efficient is

A. Directly proportional to pressure

B. Inversely proportional to pressure

C. Unity at all pressures

D. None of these

Discuss this answer

__________ law of thermodynamics ascertains the direction of a particular spontaneous process.

A. Zeroth

B. First

C. Second

D. Third

Discuss this answer

The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances. This is the

A. Lewis-Randall rule

B. Statement of Van't Hoff Equation

C. Le-Chatelier's principle

D. None of these

Discuss this answer

__________ explains the equilibrium constant for any chemical reaction.

A. Henry's law

B. Law of mass action

C. Hess's law

D. None of these

Discuss this answer

Heat requirement for decomposition of a compound into its elements is __________ that is evolved during the formation of that compound from its elements.

A. The same

B. Less than

C. Greater than

D. Different than

Discuss this answer

Heat of reaction at constant volume is identified with __________ change.

A. Enthalpy

B. Internal energy

C. Either (A) or (B)

D. Neither (A) nor (B)

Discuss this answer

In jet refrigerators, the refrigerating fluid is practically always

A. Water

B. Ammonia

C. Freon

D. Brine

Discuss this answer

Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in

A. Increased COP

B. Same COP

C. Decreased COP

D. Increased or decreased COP; depending upon the type of refrigerant

Discuss this answer

While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is

A. Infinity

B. Unity

C. Constant

D. Negative

Discuss this answer

The partial pressure of each constituent present in an alloy is __________ the total vapor pressure exerted by the alloy.

A. Less than

B. Equal to

C. More than

D. Either (B) or (C); depends on the type of alloy

Discuss this answer

Accepted Answer

C. Both (A) & (B)

Joule-Thomson co-efficient depends on the

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

The thermodynamic law, PV^y = constant, is not applicable in case of

When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change. This is called the

At normal boiling point, molar entropy of vaporisation is __________ Joule/K°.mole.

Measurement of thermodynamic property of temperature is facilitated by __________ law of thermodynamics.

Variation of equilibrium pressure with temperature for any two phases of a given substances is given by the __________ equation.

If the internal energy of an ideal gas decreases by the same amount as the work done by the system, then the

For a cyclic process, a fixed ratio between heat and work

For a real gas, the chemical potential is given by

For an ideal gas, the enthalpy

The work done in isothermal compression compared to that in adiabatic compression will be

Absolute zero temperature signifies the

Which of the following is not an equation of state?

C_p of a gas at its critical temperature and pressure

Gases are cooled in Joule-Thomson expansion, when it is __________ inversion temperature.

Which of the following decreases with increase in pressure?

Activity co-efficient is a measure of the

A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will be __________ c.c.

The work done in an adiabatic change in a particular gas depends upon changes in the __________ only.

Critical compressibility factor for all substances

An ideal gas is taken around the cycle ABCA as shown in P-V diagram below: The work done by the gas during the cycle is equal to

For an ideal gas, the activity co-efficient is

__________ law of thermodynamics ascertains the direction of a particular spontaneous process.

The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances. This is the

__________ explains the equilibrium constant for any chemical reaction.

Heat requirement for decomposition of a compound into its elements is __________ that is evolved during the formation of that compound from its elements.

Heat of reaction at constant volume is identified with __________ change.

In jet refrigerators, the refrigerating fluid is practically always

Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in

While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is

The partial pressure of each constituent present in an alloy is __________ the total vapor pressure exerted by the alloy.

Also checkout

Joule-Thomson co-efficient depends on the

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

The thermodynamic law, PVy = constant, is not applicable in case of

When a system in equilibrium is subjected to a change in temperature, pressure or concentration, the equilibrium is displaced in a direction which tends to undo the effect of the change. This is called the

At normal boiling point, molar entropy of vaporisation is __________ Joule/K°.mole.

Measurement of thermodynamic property of temperature is facilitated by __________ law of thermodynamics.

Variation of equilibrium pressure with temperature for any two phases of a given substances is given by the __________ equation.

If the internal energy of an ideal gas decreases by the same amount as the work done by the system, then the

For a cyclic process, a fixed ratio between heat and work

For a real gas, the chemical potential is given by

For an ideal gas, the enthalpy

The work done in isothermal compression compared to that in adiabatic compression will be

Absolute zero temperature signifies the

Which of the following is not an equation of state?

Cp of a gas at its critical temperature and pressure

Gases are cooled in Joule-Thomson expansion, when it is __________ inversion temperature.

Which of the following decreases with increase in pressure?

Activity co-efficient is a measure of the

A gas has a volume of 27.3 c.c. at 0°C. Its volume at 10°C (if pressure remains unchanged) will be __________ c.c.

The work done in an adiabatic change in a particular gas depends upon changes in the __________ only.

Critical compressibility factor for all substances

An ideal gas is taken around the cycle ABCA as shown in P-V diagram below: The work done by the gas during the cycle is equal to

For an ideal gas, the activity co-efficient is

__________ law of thermodynamics ascertains the direction of a particular spontaneous process.

The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances. This is the

__________ explains the equilibrium constant for any chemical reaction.

Heat requirement for decomposition of a compound into its elements is __________ that is evolved during the formation of that compound from its elements.

Heat of reaction at constant volume is identified with __________ change.

In jet refrigerators, the refrigerating fluid is practically always

Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in

While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is

The partial pressure of each constituent present in an alloy is __________ the total vapor pressure exerted by the alloy.

Also checkout

The thermodynamic law, PV^y = constant, is not applicable in case of

C_p of a gas at its critical temperature and pressure