Chemical Engineering Thermodynamics

Question: One ton of refrigeration capacity is equivalent to the heat removal rate of
[A].

50 k cal/hr

[B].

200 BTU/hr

[C].

200 BTU/minute

[D].

200 BTU/day

Answer: Option C

Explanation:

No answer description available for this question.

Question: In a working refrigerator, the value of COP is always
[A].

0

[B].

< 0

[C].

< 1

[D].

> 1

Answer: Option D

Explanation:

No answer description available for this question.

Question: Co-efficient of Performance (COP) of a refrigerator is the ratio of the
[A].

work required to refrigeration obtained.

[B].

refrigeration obtained to the work required.

[C].

lower to higher temperature.

[D].

higher to lower temperature.

Answer: Option B

Explanation:

No answer description available for this question.

Question: Fundamental principle of refrigeration is based on the __________ law of thermodynamics.
[A].

zeroth

[B].

first

[C].

second

[D].

third

Answer: Option C

Explanation:

No answer description available for this question.

Question: Ideal refrigeration cycle is
[A].

same as Carnot cycle.

[B].

same as reverse Carnot cycle.

[C].

dependent on the refrigerant’s properties.

[D].

the least efficient of all refrigeration processes.

Answer: Option B

Explanation:

No answer description available for this question.

Question: As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine is
[A].

not changed

[B].

decreasing

[C].

increasing

[D].

data sufficient, can’t be predicted

Answer: Option B

Explanation:

No answer description available for this question.

Question: 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.

Answer: Option A

Explanation:

No answer description available for this question.

Question: In Joule-Thomson porous plug experiment, the
[A].

enthalpy does not remain constant.

[B].

entire apparatus is exposed to surroundings.

[C].

temperature remains constant.

[D].

none of these.

Answer: Option D

Explanation:

No answer description available for this question.

Question: Fugacity co-efficient of a substance is the ratio of its fugacity to
[A].

mole fraction

[B].

activity

[C].

pressure

[D].

activity co-efficient

Answer: Option C

Explanation:

No answer description available for this question.

Question: For an ideal solution, the value of activity co-efficient is
[A].

0

[B].

1

[C].

< 1

[D].

> 1

Answer: Option B

Explanation:

No answer description available for this question.