Physical Chemistry (CSIR Chemical Sciences): Questions 42 - 45 of 117

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Question number: 42

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

Appeared in Year: 2014

MCQ▾

Question

For a reaction, 2A+B32, if rate of consumption of A=2×104moldm3s1 . Then the rate of formation of Z (in mol dm3s1 ) (June)

Choices

Choice (4) Response
a.

2×104

b.

3×104

c.

4×104

d.

43×104

Question number: 43

» Physical Chemistry » Chemical Kinetics » Steady State Approximation

Appeared in Year: 2013

MCQ▾

Question

Variation of equilibrium constant (k) of a certain reaction with temperature (T) is

lnk=3.0+2.0×104T

given R = 8.3 J K-1 mol-1 & values of H°&S° are: (June)

Choices

Choice (4) Response
a.

-166 KJ/mol and -24.9 Jk-1mol-1

b.

166 KJ/mol and -24.9 Jk-1mol-1

c.

-166 KJ/mol and 24.9 Jk-1mol-1

d.

166 KJ/mol and 24.9 Jk-1mol-1

Question number: 44

» Physical Chemistry » Polymer Chemistry » Molar Masses

Appeared in Year: 2015

MCQ▾

Question

Correct expression for product [(M¯n).(M¯w)] [ M¯n and M¯w are number average and weight average molar masses, respectively, of a polymer is] (June)

Choices

Choice (4) Response
a.

N1iNiMi

b.

NiNiMi

c.

N1iNiMi2

d.

NiNiMi2

Question number: 45

» Physical Chemistry » Chemical Kinetics » Unimolecular Reactions

Appeared in Year: 2015

MCQ▾

Question

For a reaction on a surface,

Reaction one given on the surface

Reaction One Given on the Surface

Showing the Reaction one given on the surface

________ (1)

Reaction two given on the surface

Reaction Two Given on the Surface

Showing Reaction two given on the surface

________ (2)

At low pressure of H2, rate is proportional to (June)

Choices

Choice (4) Response
a.

1[H2]12

b.

[H2]

c.

[H2]12

d.

1[H2]

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