Question: 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

Answer: Option D

Explanation:

No answer description available for this question.

Question: 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.
[A].

isometric

[B].

polytropic

[C].

isentropic

[D].

isobaric

Answer: Option B

Explanation:

No answer description available for this question.

Question: Kopp’s rule is used to calculate the heat capacity of
[A].

solids

[B].

liquids

[C].

gases

[D].

all (a), (b) & (c)

Answer: Option A

Explanation:

No answer description available for this question.

Question: Duringthe phase transition, __________ changes.
[A].

pressure

[B].

volume

[C].

temperature

[D].

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

Answer: Option B

Explanation:

No answer description available for this question.

Question: In the equation, PVn = constant, if the value of n = 1, then it represents a reversible __________ process.
[A].

isothermal

[B].

isobaric

[C].

polytropic

[D].

adiabatic

Answer: Option A

Explanation:

No answer description available for this question.

Question: Entropy of an ideal gas depends upon its
[A].

pressure

[B].

temperature

[C].

both (a) & (b)

[D].

neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

Question: For an ideal gas, the internal energy depends upon its __________ only.
[A].

molecular size

[B].

temperature

[C].

volume

[D].

pressure

Answer: Option B

Explanation:

No answer description available for this question.

Question: Gibbs free energy of mixing at constant pressure and temperature is always
[A].

0

[B].

∞

[C].

+ ve

[D].

– ve

Answer: Option D

Explanation:

No answer description available for this question.

Question: 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].

remains same

[D].

decreases linearly

Answer: Option B

Explanation:

No answer description available for this question.

Question: COP of a refrigerator drawing 1 kW of power per ton of refrigeration is about
[A].

0.5

[B].

3.5

[C].

4.5

[D].

8.5

Answer: Option B

Explanation:

No answer description available for this question.