Question: In the ammonia synthesis reaction, N2 + 3H2 2NH3 + 22.4 kcal, the formation of NH3 will be favoured by
[A].

high temperature.

[B].

low pressure.

[C].

low temperature only.

[D].

both low temperature and high pressure.

Answer: Option D

Explanation:

No answer description available for this question.

Question: In the decomposition of PCl5 represented by, PCl5 PCl3 + Cl2, decrease in the pressure of the system will __________ the degree of dissociation of PCl5.
[A].

increase

[B].

decrease

[C].

not alter

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: In case of the decomposition of hydroiodic acid (2HI H2 + I2), addition of H2 (at equilibrium condition) will
[A].

increase the partial pressure of I2.

[B].

decrease the partial pressure of HI.

[C].

diminish the degree of dissociation of HI.

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Question: In the reaction, H2 +I2 2HI, addition of an inert gas will
[A].

increase the partial pressure of H2.

[B].

increase the partial pressure of I2.

[C].

increase the total pressure and hence shift the equilibrium towards the right.

[D].

not effect the equilibrium conditions

Answer: Option D

Explanation:

No answer description available for this question.

Question: In the reaction; N2 + O2 2NO, increasing the pressure will result in
[A].

shifting the equilibrium towards right,

[B].

shifting the equilibrium towards left.

[C].

no change in equilibrium condition.

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Question: At absolute zero temperature, all substances have the same
[A].

heat capacity

[B].

crystalline structure

[C].

entropy

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

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

unity

[B].

zero

[C].

that of the heat of reaction

[D].

infinity

Answer: Option B

Explanation:

No answer description available for this question.

Question: “At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero”. This follows from the
[A].

third law of thermodynamics

[B].

second law of thermodynamics

[C].

Nernst heat theorem

[D].

Maxwell’s relations

Answer: Option A

Explanation:

No answer description available for this question.

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

directly proportional to pressure.

[B].

inversely proportional to pressure.

[C].

unity at all pressures.

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Question: For a given substance at a specified temperature, activity is __________ to fugacity.
[A].

directly proportional

[B].

inversely proportional

[C].

equal

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.