Chemical Engineering Thermodynamics

Question: Ideal gas law is applicable at
[A].

low T, low P

[B].

high T, high P

[C].

low T, high P

[D].

high T, low P

Answer: Option D

Explanation:

No answer description available for this question.

Question: For a single component two phase mixture, the number of independent variable properties are
[A].

two

[B].

one

[C].

zero

[D].

three

Answer: Option B

Explanation:

No answer description available for this question.

Question: In which of the following reaction equilibria, the value of equilibrium constant Kp will be more than is Kc ?
[A].

2HI H2 + I2

[B].

N2O4 2NO2

[C].

2SO2 + O2 2SO3

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: In a reversible chemical reaction (where, Δx = number of moles of products-number of moles of reactants )
[A].

addition of inert gas favours the forward reaction, when Δx is positive.

[B].

pressure has no effect on equilibrium, when Δn = 0.

[C].

addition of inert gas has no effect on the equilibrium constant at constant volume for any value of Δx (+ ve, – ve) or zero).

[D].

all ‘a’, ‘b’ & ‘c’.

Answer: Option D

Explanation:

No answer description available for this question.

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.