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August 2022

Molar heat capacity of water in equilibrium with ice at constant pressure is __________ Kcal/kg mole . °K

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics /
Question: Molar heat capacity of water in equilibrium with ice at constant pressure is __________ Kcal/kg mole . °K
[A].

0

[B].

∞

[C].

50

[D].

100

Answer: Option B

Explanation:

No answer description available for this question.

Molar heat capacity of water in equilibrium with ice at constant pressure is __________ Kcal/kg mole . °K Read More »

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics

For a thermodynamic system containing ‘x’ chemical species, the maximum number of phases that can co-exist at equilibrium is

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics /
Question: For a thermodynamic system containing ‘x’ chemical species, the maximum number of phases that can co-exist at equilibrium is
[A].

x

[B].

x + 1

[C].

x + 2

[D].

x + 3

Answer: Option C

Explanation:

No answer description available for this question.

For a thermodynamic system containing ‘x’ chemical species, the maximum number of phases that can co-exist at equilibrium is Read More »

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics

__________ equation predicts the activity co-efficient from experimental data.

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics /
Question: __________ equation predicts the activity co-efficient from experimental data.
[A].

Lewis-Randall

[B].

Margules

[C].

Van Laar

[D].

both(b)&(c)

Answer: Option D

Explanation:

No answer description available for this question.

__________ equation predicts the activity co-efficient from experimental data. Read More »

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics

Gibbs free energy (G) is represented by, G = H – TS, whereas Helmholtz free energy, (A) is given by, A = E – TS. Which of the following is the Gibbs-Helmholtz equation

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics /
Question: Gibbs free energy (G) is represented by, G = H – TS, whereas Helmholtz free energy, (A) is given by, A = E – TS. Which of the following is the Gibbs-Helmholtz equation
[A].

[B].

[C].

both (a) and (b)

[D].

neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

Gibbs free energy (G) is represented by, G = H – TS, whereas Helmholtz free energy, (A) is given by, A = E – TS. Which of the following is the Gibbs-Helmholtz equation Read More »

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics

At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by(where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.)

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics /
Question: At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by(where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.)
[A].

μ° + RT ln f

[B].

μ°+ R lnf

[C].

μ° + T lnf

[D].

μ° + R/T lnf

Answer: Option A

Explanation:

No answer description available for this question.

At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by(where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.) Read More »

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics

Gibbs free energy per mole for a pure substance is equal to the

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics /
Question: Gibbs free energy per mole for a pure substance is equal to the
[A].

latent heat of vaporisation

[B].

chemical potential

[C].

molal boiling point

[D].

heat capacity

Answer: Option B

Explanation:

No answer description available for this question.

Gibbs free energy per mole for a pure substance is equal to the Read More »

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics

Clausius – Clayperon equation is applicable to __________ equilibrium processes.

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics /
Question: Clausius – Clayperon equation is applicable to __________ equilibrium processes.
[A].

solid-vapor

[B].

solid-liquid

[C].

liquid-vapor

[D].

all (a), (b) and (c)

Answer: Option D

Explanation:

No answer description available for this question.

Clausius – Clayperon equation is applicable to __________ equilibrium processes. Read More »

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics

dW and dq are not the exact differential, because q and W are

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics /
Question: dW and dq are not the exact differential, because q and W are
[A].

state functions

[B].

path functions

[C].

intensive properties

[D].

extensive properties

Answer: Option B

Explanation:

No answer description available for this question.

dW and dq are not the exact differential, because q and W are Read More »

CHEMICAL ENGINEERING, Chemical Engineering Thermodynamics