Chemical Engineering Thermodynamics

Question: For an irreversible process involving only pressure-volume work
[A].

(dF)T, p <0

[B].

(dF)T, p = 0

[C].

(dF)T, p > 0

[D].

(dA)T, v >0

Answer: Option A

Explanation:

No answer description available for this question.

Question: For a reversible process involving only pressure-volume work
[A].

(dF)T, p < 0

[B].

(dF)T, p > 0

[C].

(dF)T, p = 0

[D].

(dA)T, v < 0

Answer: Option C

Explanation:

No answer description available for this question.

Question: Gibbs-Helmholtz equation is
[A].

[B].

ΔF = ΔH – TΔT

[C].

d(E – TS) T, V < 0

[D].

Answer: Option A

Explanation:

No answer description available for this question.

Question: Gibbs free energy (F) is defined as
[A].

F = E – TS

[B].

F = H – TS

[C].

F = H + TS

[D].

F = E + TS

Answer: Option B

Explanation:

No answer description available for this question.

Question: Helmholtz free energy (A) is defined as
[A].

A = H – TS

[B].

A = E – TS

[C].

A = H + TS

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Question: Melting of wax is accompanied with __________ in entropy.
[A].

increase

[B].

decrease

[C].

no change

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the
[A].

calorific value

[B].

heat of reaction

[C].

heat of combustion

[D].

heat of formation

Answer: Option C

Explanation:

No answer description available for this question.

Question: “If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them”. This is __________ law.
[A].

Hess’s

[B].

Kirchoff’s

[C].

Lavoisier and Laplace

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: For an exothremic reaction
[A].

only enthalpy change (ΔH) is negative.

[B].

only internal energy change (ΔE) is negative.

[C].

both ΔH and ΔE are negative.

[D].

enthalpy change is zero.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Cv is given by
[A].

[B].

[C].

[D].

Answer: Option A

Explanation:

No answer description available for this question.