Chemical Thermodynamics-Second Law of Thermodynamics (NEET Chemistry): Questions 1 - 7 of 11

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Question number: 1

» Chemical Thermodynamics » Second Law of Thermodynamics » Standard Gibbs Energy Change

MCQ▾

Question

For the spontaneous process the Gibbs free energy change will be?

Choices

Choice (4) Response

a.

Variable

b.

Negative

c.

Zero

d.

Positive

Question number: 2

» Chemical Thermodynamics » Second Law of Thermodynamics » Spontaneity of Processes

MCQ▾

Question

Which of the following is not a non spontaneous process?

Choices

Choice (4) Response

a.

Flow of heat from a cold body to hot body

b.

Flow of heat from hot body to cold body

c.

Dissolution of gold or silver in water

d.

Hydrolysis of sodium chloride

Question number: 3

» Chemical Thermodynamics » Second Law of Thermodynamics » Spontaneity of Processes

MCQ▾

Question

Melting of ice into water is an example of?

Choices

Choice (4) Response

a.

Spontaneous process

b.

Non-spontaneous process

c.

Reversible process

d.

Question does not provide sufficient data or is vague

Question number: 4

» Chemical Thermodynamics » Second Law of Thermodynamics » Spontaneity of Processes

MCQ▾

Question

For the spontaneous process ∆H will be?

Choices

Choice (4) Response

a.

Negative

b.

Zero

c.

Positive

d.

Constant

Question number: 5

» Chemical Thermodynamics » Second Law of Thermodynamics » Standard Gibbs Energy Change

MCQ▾

Question

Equilibrium constant for the Equation the Standard Gibbs free energy change for the reaction is?

Choices

Choice (4) Response

a.

-4.964 k J

b.

-9.694 k J

c.

-6.964 k J

d.

-6.496 k J

Question number: 6

» Chemical Thermodynamics » Second Law of Thermodynamics » Standard Gibbs Energy Change

MCQ▾

Question

In the reaction A + + B → A + B + , there is no change of entropy. If enthalpy change is 22 KJ of A +. . Calculate Gibbs free energy change for the reaction. ?

Choices

Choice (4) Response

a.

22 k J/mol

b.

- 42 k J/mol

c.

42 k J/mol

d.

-22 k J/mol

Question number: 7

» Chemical Thermodynamics » Second Law of Thermodynamics » Standard Gibbs Energy Change

MCQ▾

Question

Predict then following reaction for spontaneity

SOCl 2 + H 2O → SO 2 + 2HCl

The enthalpy of the reaction is 49.4 k J and entropy reaction is 336 J/K and calculate ∆ G?

Choices

Choice (4) Response

a.

-52 k J

b.

52 k J

c.

-51.4 k J

d.

51.4 k J

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