August 2022

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.

Question: Equilibrium constant of a reaction varies with the
[A].

initial concentration of the reactant.

[B].

pressure.

[C].

temperature.

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Maximum work that could be secured by expanding the gas over a given pressure range is the __________ work.
[A].

isothermal

[B].

adiabatic

[C].

isentropic

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: Fugacity and pressure are numerically equal, when the gas is
[A].

in standard state

[B].

at high pressure

[C].

at low temperature

[D].

in ideal state

Answer: Option D

Explanation:

No answer description available for this question.

Question: Partial molal quantities are important in the study of
[A].

ideal gases

[B].

ideal solutions

[C].

non-ideal mixtures

[D].

a pure component

Answer: Option C

Explanation:

No answer description available for this question.

Question: Chemical potential of ith component of a system is given by
[A].

[B].

[C].

[D].

Answer: Option A

Explanation:

No answer description available for this question.

Question: Chemical potential is a/an
[A].

extensive property.

[B].

intensive property.

[C].

force which drives the chemical system to equilibrium.

[D].

both (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Question: Free energy changes for two reaction mechanism ‘X’ and ‘Y are respectively – 15 and – 5 units. It implies that X is
[A].

slower than Y

[B].

faster than Y

[C].

three times slower than Y

[D].

three times faster than Y

Answer: Option B

Explanation:

No answer description available for this question.