Chemical Engineering Thermodynamics

Question: As the temperature is lowered towards the absolute zero, the value of the quantity approaches
[A].

zero

[B].

unity

[C].

infinity

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: At constant temperature and pressure, for one mole of a pure substance, the ratio of the free energy to the chemical potential is
[A].

zero

[B].

one

[C].

infinity

[D].

negative

Answer: Option B

Explanation:

No answer description available for this question.

Question: Gibbs-Duhem equation
[A].

states that n1dμ1 + n2dμ2 + ….njdμj = 0, for a system of definite composition at constant temperature and pressure.

[B].

applies only to binary systems.

[C].

finds no application in gas-liquid equilibria involved in distillation.

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: Number of phases in a colloidal system are
[A].

1

[B].

2

[C].

3

[D].

4

Answer: Option B

Explanation:

No answer description available for this question.

Question: Degree of freedom of a system consisting of a gaseous mixture of H2 and NH3 will be
[A].

0

[B].

1

[C].

2

[D].

3

Answer: Option D

Explanation:

No answer description available for this question.

Question: Degree of freedom of the system ice-water-vapour will be
[A].

0

[B].

1

[C].

2

[D].

3

Answer: Option A

Explanation:

No answer description available for this question.

Question: 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).

Answer: Option C

Explanation:

No answer description available for this question.

Question: 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

Answer: Option C

Explanation:

No answer description available for this question.

Question: At a given temperature, the volume of a gas dissolved in a solvent __________ with increase in pressure.
[A].

increases

[B].

decreases

[C].

remains unchanged

[D].

may increase or decrease; depends on the gas

Answer: Option C

Explanation:

No answer description available for this question.

Question: Henry’s law is closely obeyed by a gas, when its __________ is extremely high.
[A].

pressure

[B].

solubility

[C].

temperature

[D].

none of these

Answer: Option D

Explanation:

No answer description available for this question.