Question: Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed as the heat of
[A].

fusion

[B].

vaporisation

[C].

transition

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: __________ calorimeter is normally used for measuring the dryness fraction of steam, when it is very low.
[A].

Bucket

[B].

Throttling

[C].

Separating

[D].

A combination of separating & throttling

Answer: Option D

Explanation:

No answer description available for this question.

Question: Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture __________ calorimeter is not used for measuring the dryness fraction of steam.
[A].

Bomb

[B].

Separating

[C].

Bucket

[D].

Throttling

Answer: Option A

Explanation:

No answer description available for this question.

Question: Claude’s liquefaction process employs the cooling of gases by
[A].

expansion in an engine

[B].

following a constant pressure cycle

[C].

throttling

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: If an ideal solution is formed by mixing two pure liquids in any proportion, then the __________ of mixing is zero.
[A].

enthalpy

[B].

volume

[C].

both ‘a’ & ‘b’

[D].

neither ‘a’ nor ‘b’

Answer: Option C

Explanation:

No answer description available for this question.

Question: Gases are cooled in Joule-Thomson expansion, when it is __________ inversion temperature.
[A].

below

[B].

at

[C].

above

[D].

either ‘b’ or ‘c’

Answer: Option A

Explanation:

No answer description available for this question.

Question: Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ____with the increase of reduced temperature.
[A].

decreases

[B].

increases

[C].

remains constant

[D].

decreases logarithmically

Answer: Option B

Explanation:

No answer description available for this question.

Question: Melting of ice is an example of an __________ process.
[A].

adiabatic

[B].

isothermal

[C].

isometric

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.