Chemical Thermodynamics-Second Law of Thermodynamics (NEET Chemistry): Questions 1 - 6 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 reactionH2(g)+I2(g)=2HI(g)isKc=50at25°C, 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

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