Chemical Engineering Thermodynamics

Question: All gases above its inversion temperature, in a throttling process will show
[A].

a heating effect.

[B].

no change in temperature.

[C].

a cooling effect.

[D].

either (a) or (c).

Answer: Option A

Explanation:

No answer description available for this question.

Question: All gases during throttling process at atmospheric temperature and pressure show a cooling effect except
[A].

CO2

[B].

H2

[C].

O2

[D].

N2

Answer: Option B

Explanation:

No answer description available for this question.

Question: For multicomponent multiple phases to be in equilibrium at the same pressure and temperature, the __________ of each component must be same in all phases.
[A].

chemical potential

[B].

fugacity

[C].

both (a) and (b)

[D].

neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

Question: Isotherm on an enthalpy-concentration diagram, for an ideal solution will be a
[A].

straight line

[B].

sine curve

[C].

parabola

[D].

hyperbola

Answer: Option A

Explanation:

No answer description available for this question.

Question: Gibbs free energy of a pure fluid approaches __________ as the pressure tends to zero at constant temperature.
[A].

infinity

[B].

minus infinity

[C].

zero

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: __________ increases with increase in pressure.
[A].

The melting point of wax

[B].

The boiling point of a liquid

[C].

both (a) and (b)

[D].

neither (a) nor (b)

Answer: Option C

Explanation:

No answer description available for this question.

Question: For an incompressible fluid, the __________ is a function of both pressure as well as temperature.
[A].

internal energy

[B].

enthalpy

[C].

entropy

[D].

all (a), (b) & (c)

Answer: Option B

Explanation:

No answer description available for this question.

Question: Entropy of a substance remains constant during a/an __________ change.
[A].

reversible isothermal

[B].

irreversible isothermal

[C].

reversible adiabatic

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: Adiabatic compression of a saturated water vapour makes it
[A].

supersaturated

[B].

superheated

[C].

both (a) and (b)

[D].

neither (a) nor (b)

Answer: Option B

Explanation:

No answer description available for this question.

Question: Lenz’s law results from the law of conservation of
[A].

mass

[B].

momentum

[C].

energy

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.