Chemical Thermodynamics-Second Law of Thermodynamics (NEET (National Eligibility cum Medical Entrance Test) Chemistry): Questions 8 - 11 of 11

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Question number: 8

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

MCQ▾

Question

When an ideal gas compressed adiabatically and reversibly, the final temperature is?

Choices

Choice (4) Response

a.

Same as the initial temperature

b.

Lower than the initial temperature

c.

Higher than the initial temperature

d.

Depend on rate of compression.

Question number: 9

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

MCQ▾

Question

For a reaction, ∆ H =+30 k J/mol and ∆ S =-34 J/Kmol, at what temperature the reaction will be spontaneous?

Choices

Choice (4) Response

a.

654 K

b.

spontaneous at all temperatures

c.

Not possible

d.

654 °C

Question number: 10

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

MCQ▾

Question

”All forms of energy can be converted into heat energy but heat cannot be converted into other forms of energy fully by any process “ is the statement of?

Choices

Choice (4) Response

a.

Thomson statement

b.

Boltzman statement.

c.

Kelvin –plank statement

d.

Calcius statement

Question number: 11

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

MCQ▾

Question

Calculate the temperature at which liquid water will be in equilibrium with water vapor?

∆ H VAP = 40.73 k J/mol ∆ S = 0.109 kJ/mol. K?

Choices

Choice (4) Response

a.

472.8 K

b.

364.3 K

c.

373.6 K

d.

498.6 K

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