For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.

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For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.

A. Decreases

B. Increases

C. Remain same

D. Decreases linearly

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If heat contents of CH₄, C₂H₄ and C₃H₈ are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH₄(g) + C₂H₄(g) C₃H₈(g) will be __________ Kcal.

A. -19.4

B. -30.2

C. 55.2

D. -55.2

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Entropy change for an irreversible isolated system is

A. ∞

B. 0

C. < 0

D. > 0

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A thermodynamic system is taken from state A to B along ACB and is brought back to A along BDA as shown below in the P-V diagram. The net work done during the complete cycle is given by the area covered by

A. P₁ACBP₂P₁

B. ACBB¹A¹A

C. ACBDA

D. ADBB¹A¹A

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A refrigeration cycle is the same as a __________ cycle,

A. Turbine

B. Heat engine

C. Reversed heat engine

D. None of these

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A system in which there is exchange of energy but not of mass, is called a/an __________ system.

A. Isolated

B. Open

C. Insulated

D. Closed

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Rotary lime kiln is an example of a/an __________ system.

A. Closed

B. Open

C. Isolated

D. Non-thermodynamic

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The variation of heat of reaction with temperature at constant pressure is given by the __________ law.

A. Kelvin's

B. Antoines

C. Kirchoffs

D. None of these

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

A. Below

B. At

C. Above

D. Either 'b' or 'c'

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For a constant volume process __________ by the system is used only to increase the internal energy.

A. Heat absorbed

B. Work done

C. Both (A) & (B)

D. Neither (A) nor (B)

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The effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is

A. Less pronounced

B. More pronounced

C. Equal

D. Data insufficient, can't be predicted

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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

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A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the __________ mean of P₁ and P₂. (where, P₁ and P₂ are initial and final pressures respectively)

A. Logarithmic

B. Arithmetic

C. Geometric

D. Harmonic

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Joule-Thomson effect i.e., a throttling process is a constant __________ process.

A. Entropy

B. Temperature

C. Internal energy

D. Enthalpy

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The internal energy of an incompressible fluid depends upon its

A. Pressure

B. Temperature

C. Both (A) & (B)

D. Neither (A) nor (B)

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Enthalpy of a gas depends upon its

A. Temperature

B. Mass

C. Volume

D. Pressure

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The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is

A. Less

B. More

C. Same

D. Dependent on climatic conditions

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The expression, ΔG = nRT. ln(P₂/P₁), gives the free energy change

A. With pressure changes at constant temperature

B. Under reversible isothermal volume change

C. During heating of an ideal gas

D. During cooling of an ideal gas

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Specific volume of an ideal gas is

A. Equal to its density

B. The reciprocal of its density

C. Proportional to pressure

D. None of these

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Internal energy is equal to the heat absorbed in case of a/an __________ process.

A. Constant volume

B. Polytropic

C. Adiabatic

D. Constant pressure

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When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and pressure), then chemical potential of each component is

A. Same in both the phases

B. Zero in both the phases

C. More in vapour phase

D. More in liquid phase

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Which of the following will increase the volume of a real gas by four times?

A. Doubling the absolute temperature as well as pressure of the gas

B. Reducing pressure to one fourth at constant temperature

C. Reducing temperature to one fourth at constant pressure

D. Reducing the temperature to half and doubling the pressure

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If atmospheric temperature and dew point are nearly equal, then the relative humidity is

A. Zero

B. 50%

C. Almost 100%

D. unpredictable

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A refrigerator works on the principle of __________ law of thermodynamics.

A. Zeroth

B. First

C. Second

D. Third

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Number of phases in a colloidal system is:

A. 1

B. 2

C. 3

D. 4

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Melting of ice is an example of an __________ process.

A. Adiabatic

B. Isothermal

C. Isometric

D. None of these

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Joule-Thomson co-efficient for a perfect gas is

A. Zero

B. Positive

C. Negative

D. None of these

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The value of C_p & C_v respectively for monatomic gases in Kcal/kg Mole.°K are

A. 5 & 3

B. 3.987 & 1.987

C. 1.987 & 0.66

D. 0.66 & 1.987

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Which is not constant for an ideal gas?

A. (∂P/∂V)_T

B. (∂V/∂T)_P

C. (∂P/∂V)_V

D. All (A), (B) & (C)

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Isobaric process means a constant process.

A. Temperature

B. Pressure

C. Volume

D. Entropy

Discuss this answer

For a spontaneous process, free energy

A. Is zero

B. Increases

C. Decreases whereas the entropy increases

D. And entropy both decrease

Discuss this answer

Accepted Answer

B. Increases

For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

If heat contents of CH₄, C₂H₄ and C₃H₈ are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH₄(g) + C₂H₄(g) C₃H₈(g) will be __________ Kcal.

Entropy change for an irreversible isolated system is

A thermodynamic system is taken from state A to B along ACB and is brought back to A along BDA as shown below in the P-V diagram. The net work done during the complete cycle is given by the area covered by

A refrigeration cycle is the same as a __________ cycle,

A system in which there is exchange of energy but not of mass, is called a/an __________ system.

Rotary lime kiln is an example of a/an __________ system.

The variation of heat of reaction with temperature at constant pressure is given by the __________ law.

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

For a constant volume process __________ by the system is used only to increase the internal energy.

The effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is

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

Joule-Thomson effect i.e., a throttling process is a constant __________ process.

The internal energy of an incompressible fluid depends upon its

Enthalpy of a gas depends upon its

The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is

The expression, ΔG = nRT. ln(P₂/P₁), gives the free energy change

Specific volume of an ideal gas is

Internal energy is equal to the heat absorbed in case of a/an __________ process.

When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and pressure), then chemical potential of each component is

Which of the following will increase the volume of a real gas by four times?

If atmospheric temperature and dew point are nearly equal, then the relative humidity is

A refrigerator works on the principle of __________ law of thermodynamics.

Number of phases in a colloidal system is:

Melting of ice is an example of an __________ process.

Joule-Thomson co-efficient for a perfect gas is

The value of C_p & C_v respectively for monatomic gases in Kcal/kg Mole.°K are

Which is not constant for an ideal gas?

Isobaric process means a constant process.

For a spontaneous process, free energy

Also checkout

For a stable phase at constant pressure and temperature, the fugacity of each component in a binary system __________ as its mole fraction increases.

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

If heat contents of CH4, C2H4 and C3H8 are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH4(g) + C2H4(g) C3H8(g) will be __________ Kcal.

Entropy change for an irreversible isolated system is

A thermodynamic system is taken from state A to B along ACB and is brought back to A along BDA as shown below in the P-V diagram. The net work done during the complete cycle is given by the area covered by

A refrigeration cycle is the same as a __________ cycle,

A system in which there is exchange of energy but not of mass, is called a/an __________ system.

Rotary lime kiln is an example of a/an __________ system.

The variation of heat of reaction with temperature at constant pressure is given by the __________ law.

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

For a constant volume process __________ by the system is used only to increase the internal energy.

The effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is

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

Joule-Thomson effect i.e., a throttling process is a constant __________ process.

The internal energy of an incompressible fluid depends upon its

Enthalpy of a gas depends upon its

The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is

The expression, ΔG = nRT. ln(P2/P1), gives the free energy change

Specific volume of an ideal gas is

Internal energy is equal to the heat absorbed in case of a/an __________ process.

When liquid and vapour phase of multi-component system are in equilibrium (at a given temperature and pressure), then chemical potential of each component is

Which of the following will increase the volume of a real gas by four times?

If atmospheric temperature and dew point are nearly equal, then the relative humidity is

A refrigerator works on the principle of __________ law of thermodynamics.

Number of phases in a colloidal system is:

Melting of ice is an example of an __________ process.

Joule-Thomson co-efficient for a perfect gas is

The value of Cp & Cv respectively for monatomic gases in Kcal/kg Mole.°K are

Which is not constant for an ideal gas?

Isobaric process means a constant process.

For a spontaneous process, free energy

Also checkout

If heat contents of CH₄, C₂H₄ and C₃H₈ are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH₄(g) + C₂H₄(g) C₃H₈(g) will be __________ Kcal.

The expression, ΔG = nRT. ln(P₂/P₁), gives the free energy change

The value of C_p & C_v respectively for monatomic gases in Kcal/kg Mole.°K are