The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by

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The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by

A. (∂E/∂n_i)_{S, v, nj}

B. (∂G/∂n_i)_{T, P, nj} = (∂A/∂ni) _{T, v, nj}

C. (∂H/∂n_i)_{S, P, nj}

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

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Internal energy of an ideal gas

A. Increases with increase in pressure

B. Decreases with increase in temperature

C. Is independent of temperature

D. None of these

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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

Discuss this answer

Chemical engineering thermodynamics is concerned with the __________ in/of chemical processes.

A. Reaction mechanism

B. Calculation of rates

C. Energy transformation from one form to another

D. None of these

Discuss this answer

The partial molar enthalpy of a component in an ideal binary gas mixture of composition Z, at a temperature T and pressure P, is a function only of

A. T

B. T and P

C. T, P and Z

D. T and Z

Discuss this answer

The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by

A. (∂E/∂n_i)_{S, v, nj}

B. (∂G/∂n_i)_{T, P, nj} = (∂A/∂ni) _{T, v, nj}

C. (∂H/∂n_i)_{S, P, nj}

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

Discuss this answer

In the equation, PVⁿ = constant, if the value of n is in between 1 and y (i.e. C_p/C_v), then it represents a reversible __________ process.

A. Isometric

B. Polytropic

C. Isentropic

D. Isobaric

Discuss this answer

The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the __________ equation.

A. Gibbs-Duhem

B. Van Laar

C. Gibbs-Helmholtz

D. Margules

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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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Sound waves propagation in air exemplifies an __________ process.

A. Adiabatic

B. Isothermal

C. Isometric

D. None of these

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Which of the following is not a unit of the equilibrium constant K_p? (where, Δx = number of moles of products number of moles of reactants)

A. (atm)^Δx, when Δx is negative

B. (atm)^Δx, when Δx is positive

C. Dimensionless, when Δx = 0

D. (atm)^Δx2, when Δx > 0

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If an ideal solution is formed by mixing two pure liquids in any proportion, then the __________ of mixing is zero

A. Enthalpy

B. Volume

C. Both 'a' & 'b'

D. Neither 'a' nor 'b'

Discuss this answer

One ton of refrigeration capacity is equivalent to the heat removal rate of

A. 50 kcal/hr

B. 200 BTU/hr

C. 200 BTU/minute

D. 200 BTU/day

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The free energy change for a chemical reaction is given by (where, K = equilibrium constant)

A. RT ln K

B. -RT ln K

C. -R ln K

D. T ln K

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The ratio of equilibrium constants (Kp2/Kp1) at two different temperatures is given by

A. (R/ΔH) (1/T₁ - 1/T₂)

B. (ΔH/R) (1/T₁ - 1/T₂)

C. (ΔH/R) (1/T₂ - 1/T₁)

D. (1/R) (1/T₁ - 1/T₂)

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Solid and liquid phases of a substance are in equilibrium at the

A. Critical temperature

B. Melting point

C. Freezing point

D. Both (B) and (C)

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Grams of butane (C₄H₁₀) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be

A. 580

B. 640

C. 1160

D. Data insufficient; can't be computed

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Mollier chart is a __________ plot.

A. Pressure vs. enthalpy

B. Pressure vs. volume

C. Enthalpy vs. entropy

D. Temperature vs. entropy

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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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4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is

A. 4 J

B. ∞

C. 0

D. 8 J

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In a turbine, the fluid expands almost

A. Isothermally

B. Isobarically

C. Adiabatically

D. None of these

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Gibbs free energy at constant pressure and temperature under equilibrium conditions is

A. ∞

B. 0

C. Maximum

D. Minimum

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Equilibrium constant decreases as the temperature

A. Increases, for an exothermic reaction

B. Decreases, for an exothermic reaction

C. Increases, for an endothermic reaction

D. None of these

Discuss this answer

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

Discuss this answer

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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A system is said to be isopiestic, if there is no __________ change.

A. Temperature

B. Pressure

C. Volume

D. None of these

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Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are

A. Always greater than one

B. Same at the same reduced temperature

C. Same at the same reduced pressure

D. Both (B) & (C)

Discuss this answer

Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is

A. 0

B. ∞

C. +ve

D. -ve

Discuss this answer

Out of the following refrigeration cycles, which one has the minimum COP (Co-efficient of performance)?

A. Air cycle

B. Carnot cycle

C. Ordinary vapour compression cycle

D. Vapour compression with a reversible expansion engine

Discuss this answer

Thermal efficiency of a Carnot engine can approach 100%, only when the temperature of the

A. Cold reservoir approaches zero

B. Hot reservoir approaches infinity

C. Either (A) or (B)

D. Neither (A) nor (B)

Discuss this answer

Clapeyron Equation deals with the

A. Rate of change of vapour pressure with temperature

B. Effect of an inert gas on vapour pressure

C. Calculation of ΔF for spontaneous phase change

D. Temperature dependence of heat of phase transition

Discuss this answer

Accepted Answer

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

The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

Internal energy of an ideal gas

If two gases have same reduced temperature and reduced pressure, then they will have the same

Chemical engineering thermodynamics is concerned with the __________ in/of chemical processes.

The partial molar enthalpy of a component in an ideal binary gas mixture of composition Z, at a temperature T and pressure P, is a function only of

The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by

In the equation, PVⁿ = constant, if the value of n is in between 1 and y (i.e. C_p/C_v), then it represents a reversible __________ process.

The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the __________ equation.

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.

Sound waves propagation in air exemplifies an __________ process.

Which of the following is not a unit of the equilibrium constant K_p? (where, Δx = number of moles of products number of moles of reactants)

If an ideal solution is formed by mixing two pure liquids in any proportion, then the __________ of mixing is zero

One ton of refrigeration capacity is equivalent to the heat removal rate of

The free energy change for a chemical reaction is given by (where, K = equilibrium constant)

The ratio of equilibrium constants (Kp2/Kp1) at two different temperatures is given by

Solid and liquid phases of a substance are in equilibrium at the

Grams of butane (C₄H₁₀) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be

Mollier chart is a __________ plot.

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

4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is

In a turbine, the fluid expands almost

Gibbs free energy at constant pressure and temperature under equilibrium conditions is

Equilibrium constant decreases as the temperature

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

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

A system is said to be isopiestic, if there is no __________ change.

Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are

Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is

Out of the following refrigeration cycles, which one has the minimum COP (Co-efficient of performance)?

Thermal efficiency of a Carnot engine can approach 100%, only when the temperature of the

Clapeyron Equation deals with the

Also checkout

The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by

Correct Answer :

Show all Chemical Engineering Thermodynamics MCQ

Related Questions

Internal energy of an ideal gas

If two gases have same reduced temperature and reduced pressure, then they will have the same

Chemical engineering thermodynamics is concerned with the __________ in/of chemical processes.

The partial molar enthalpy of a component in an ideal binary gas mixture of composition Z, at a temperature T and pressure P, is a function only of

The chemical potential of a component (μi) of a phase is the amount by which its capacity for doing all work, barring work of expansion is increased per unit amount of substance added for an infinitesimal addition at constant temperature and pressure. It is given by

In the equation, PVn = constant, if the value of n is in between 1 and y (i.e. Cp/Cv), then it represents a reversible __________ process.

The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the __________ equation.

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.

Sound waves propagation in air exemplifies an __________ process.

Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants)

If an ideal solution is formed by mixing two pure liquids in any proportion, then the __________ of mixing is zero

One ton of refrigeration capacity is equivalent to the heat removal rate of

The free energy change for a chemical reaction is given by (where, K = equilibrium constant)

The ratio of equilibrium constants (Kp2/Kp1) at two different temperatures is given by

Solid and liquid phases of a substance are in equilibrium at the

Grams of butane (C4H10) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be

Mollier chart is a __________ plot.

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

4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is

In a turbine, the fluid expands almost

Gibbs free energy at constant pressure and temperature under equilibrium conditions is

Equilibrium constant decreases as the temperature

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

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

A system is said to be isopiestic, if there is no __________ change.

Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are

Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is

Out of the following refrigeration cycles, which one has the minimum COP (Co-efficient of performance)?

Thermal efficiency of a Carnot engine can approach 100%, only when the temperature of the

Clapeyron Equation deals with the

Also checkout

In the equation, PVⁿ = constant, if the value of n is in between 1 and y (i.e. C_p/C_v), then it represents a reversible __________ process.

Which of the following is not a unit of the equilibrium constant K_p? (where, Δx = number of moles of products number of moles of reactants)

Grams of butane (C₄H₁₀) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be