Gibbs-Duhem equation relates composition in liquid phase and the __________ at constant temperature & pressure.

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Gibbs-Duhem equation relates composition in liquid phase and the __________ at constant temperature & pressure.

A. Fugacity

B. Partial pressure

C. Activity co-efficient

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

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Compressibility factor for almost all the gases are approximately same at the same

A. Pressure and temperature

B. Reduced pressure and reduced temperature

C. Critical pressure and critical temperature

D. None of these

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Lenz's law results from the law of conservation of

A. Mass

B. Momentum

C. Energy

D. None of these

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The equation relating E, P, V and T which is true for all substances under all conditions is given by (∂E/∂V)_T = T(∂P/∂T)_H - P. This equation is called the

A. Maxwell's equation

B. Thermodynamic equation of state

C. Equation of state

D. Redlich-Kwong equation of state

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In an ideal solution, the activity of a component equals its

A. Mole fraction

B. Fugacity at the same temperature and pressure

C. Partial pressure

D. None of these

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Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass?

A. dE = Tds - PdV

B. dQ = C_vdT + PdV

C. dQ = C_pdT + Vdp

D. Tds = dE - PdV

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The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be

A. More

B. Less

C. Same

D. Data insufficient to predict

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Internal energy change of a system over one complete cycle in a cyclic process is

A. Zero

B. +ve

C. -ve

D. Dependent on the path

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Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture __________ calorimeter is not used for measuring the dryness fraction of steam.

A. Bomb

B. Separating

C. Bucket

D. Throttling

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During adiabatic expansion of gas

A. Pressure remains constant

B. Pressure is increased

C. Temperature remains constant

D. None of these

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The first law of thermodynamics is a statement of conservation of

A. Heat

B. Momentum

C. Energy

D. Work

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Standard temperature and pressure (S.T.P.) is

A. 0°C and 750 mm Hg

B. 15°C and 750 mm Hg

C. 0°C and 1 kgf/cm2

D. 15°C and 1 kgf/cm2

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In the reaction, C + O₂ → CO₂; ΔH = - 94 kcal. What is the heat content (enthalpy) of O₂?

A. -94 kcal

B. > -94 kcal

C. < - 94 kcal

D. Zero

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Joule-Thomson co-efficient is defined as

A. μ = (∂P/∂T)H

B. μ = (∂T/∂P)H

C. μ = (∂E/∂T)H

D. μ = (∂E/∂P)H

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PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process.

A. Isothermal

B. Isentropic

C. Isobaric

D. Adiabatic

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The gas law (PV = RT) is true for an __________ change.

A. Isothermal

B. Adiabatic

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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Heating of water under atmospheric pressure is an __________ process.

A. Isochoric

B. Isobaric

C. Adiabatic

D. Isothermal

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Pick out the correct equation relating 'F' and 'A'.

A. F = A + PV

B. F = E + A

C. F = A - TS

D. F = A + TS

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Third law of thermodynamics is helpful in

A. Prediction of the extent of a chemical reaction

B. Calculating absolute entropies of substances at different temperature

C. Evaluating entropy changes of chemical reaction

D. Both (B) and (C)

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Helmholtz free energy (A) is defined as

A. A = H - TS

B. A = E - TS

C. A = H + TS

D. None of these

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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

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In a P-V diagram (for an ideal gas), an isothermal curve will coincide within adiabatic curve (through a point), when

A. C_p < C_v

B. C_p = C_v

C. C_p > C_v

D. C ≥ C_v

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For the reversible exothermic reaction, N₂ + 3H₂ 2NH₃, increase of pressure would

A. Shift the equilibrium towards right

B. Give higher yield of NH₃

C. Both (B) and (C)

D. Neither (A) nor (B)

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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

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Which of the following is an extensive property of a system?

A. Heat capacity

B. Molal heat capacity

C. Pressure

D. Concentration

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High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process:

A. Δ H = 0 and ΔS = 0

B. Δ H ≠ 0 and ΔS = 0

C. Δ H ≠ 0 and ΔS ≠ 0

D. Δ H = 0 and ΔS ≠ 0

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Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the temperature should be raised to __________ °C.

A. 270

B. 327

C. 300

D. 540

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Which of the following is not an intensive property?

A. Volume

B. Density

C. Temperature

D. Pressure

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On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will

A. Increase

B. Decrease

C. Remain same

D. Increase in summer and will decrease in winter

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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

Discuss this answer

Accepted Answer

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

Gibbs-Duhem equation relates composition in liquid phase and the __________ at constant temperature & pressure.

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

Compressibility factor for almost all the gases are approximately same at the same

Lenz's law results from the law of conservation of

The equation relating E, P, V and T which is true for all substances under all conditions is given by (∂E/∂V)_T = T(∂P/∂T)_H - P. This equation is called the

In an ideal solution, the activity of a component equals its

Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass?

The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be

Internal energy change of a system over one complete cycle in a cyclic process is

Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture __________ calorimeter is not used for measuring the dryness fraction of steam.

During adiabatic expansion of gas

The first law of thermodynamics is a statement of conservation of

Standard temperature and pressure (S.T.P.) is

In the reaction, C + O₂ → CO₂; ΔH = - 94 kcal. What is the heat content (enthalpy) of O₂?

Joule-Thomson co-efficient is defined as

PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process.

The gas law (PV = RT) is true for an __________ change.

Enthalpy of a gas depends upon its

Heating of water under atmospheric pressure is an __________ process.

Pick out the correct equation relating 'F' and 'A'.

Third law of thermodynamics is helpful in

Helmholtz free energy (A) is defined as

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

In a P-V diagram (for an ideal gas), an isothermal curve will coincide within adiabatic curve (through a point), when

For the reversible exothermic reaction, N₂ + 3H₂ 2NH₃, increase of pressure would

A Carnot cycle consists of the following steps:

Which of the following is an extensive property of a system?

High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process:

Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the temperature should be raised to __________ °C.

Which of the following is not an intensive property?

On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will

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

Also checkout

Gibbs-Duhem equation relates composition in liquid phase and the __________ at constant temperature & pressure.

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

Compressibility factor for almost all the gases are approximately same at the same

Lenz's law results from the law of conservation of

The equation relating E, P, V and T which is true for all substances under all conditions is given by (∂E/∂V)T = T(∂P/∂T)H - P. This equation is called the

In an ideal solution, the activity of a component equals its

Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass?

The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be

Internal energy change of a system over one complete cycle in a cyclic process is

Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture __________ calorimeter is not used for measuring the dryness fraction of steam.

During adiabatic expansion of gas

The first law of thermodynamics is a statement of conservation of

Standard temperature and pressure (S.T.P.) is

In the reaction, C + O2 → CO2; ΔH = - 94 kcal. What is the heat content (enthalpy) of O2?

Joule-Thomson co-efficient is defined as

PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process.

The gas law (PV = RT) is true for an __________ change.

Enthalpy of a gas depends upon its

Heating of water under atmospheric pressure is an __________ process.

Pick out the correct equation relating 'F' and 'A'.

Third law of thermodynamics is helpful in

Helmholtz free energy (A) is defined as

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

In a P-V diagram (for an ideal gas), an isothermal curve will coincide within adiabatic curve (through a point), when

For the reversible exothermic reaction, N2 + 3H2 2NH3, increase of pressure would

A Carnot cycle consists of the following steps:

Which of the following is an extensive property of a system?

High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process:

Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the temperature should be raised to __________ °C.

Which of the following is not an intensive property?

On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will

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

Also checkout

The equation relating E, P, V and T which is true for all substances under all conditions is given by (∂E/∂V)_T = T(∂P/∂T)_H - P. This equation is called the

In the reaction, C + O₂ → CO₂; ΔH = - 94 kcal. What is the heat content (enthalpy) of O₂?

For the reversible exothermic reaction, N₂ + 3H₂ 2NH₃, increase of pressure would