Physical Chemistry-Chemical Kinetics (CSIR Chemical Sciences): Questions 17 - 21 of 41

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Question number: 17

» Physical Chemistry » Chemical Kinetics » Collision and Transition State Theories of Rate Constants

Appeared in Year: 2013

MCQ▾

Question

Half-Life of a zero order reaction (A→P) is given by (k = rate constant) (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 18

» Physical Chemistry » Chemical Kinetics » Collision and Transition State Theories of Rate Constants

Appeared in Year: 2013

MCQ▾

Question

Equilibrium population ration ( Equation ) of a doubly degenerate energy level ( Equation ) lying 2 unit higher than a lower non-degenerate energy level ( Equation ), will be Equation

(June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 19

» Physical Chemistry » Chemical Kinetics » Collision and Transition State Theories of Rate Constants

Appeared in Year: 2012

MCQ▾

Question

Arhenius parameter for thermal decomposition of NOCl, 2NOCl (g) → 2NO (g) + Cl2 (g)

Ea = 105 kJ/mol

RT = 2.5 kJ/mol Enthalpy (kJ/mol) of activated complex will be (December)

Choices

Choice (4) Response

a.

110

b.

102.5

c.

105

d.

100

Question number: 20

» Physical Chemistry » Chemical Kinetics » Steady State Approximation

Appeared in Year: 2013

MCQ▾

Question

Overall rate law of following complex reaction.

Equation (Fast equilibrium)

Equation (Fast equilibrium)

Equation (Slow)

By SSA, would be

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 21

» Physical Chemistry » Chemical Kinetics » Complex Reactions

Appeared in Year: 2013

MCQ▾

Question

Concentration of a reactant undergoing decomposition was 0.1, 0.08 & 0.067 mol L -1 after 1.0, 2.0 and 3.0 hr respectively. Order of reaction is (December)

Choices

Choice (4) Response

a.

1

b.

3

c.

0

d.

2

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