CSIR Chemical Sciences: Questions 33 - 37 of 329

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Question number: 33

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

Appeared in Year: 2013

MCQ▾

Question

In a chemical reaction, A(s)+B(g)C(g) total pressure at equilibrium is 6 atm. The value of equilibrium constant is (June)

Choices

Choice (4) Response
a.

36

b.

1

c.

9

d.

12

Question number: 34

» Physical Chemistry » Statistical Thermodynamics » Boltzmann Distribution

Appeared in Year: 2012

MCQ▾

Question

Relative population in two states with energy E1andE2 satisfy Boltzmann Distribution Ratio: -

n1n2=32exp[(E1E2)]kBT . Relative degeneracy g2/g1 is (december)

Choices

Choice (4) Response
a.

3

b.

32

c.

23

d.

2

Question number: 35

» Physical Chemistry » Statistical Thermodynamics » Kinetic Theory of Gases

Appeared in Year: 2013

MCQ▾

Question

Volume of a gas adsorbed on solid surface is 10.0ml, 11.0ml, 11.2ml, 14.5ml and 22.5ml at 1.0, 2.0, 3.0, 4.0 and 5.0 atm pressure, these date are best represented by (December)

Choices

Choice (4) Response
a.

Langmuir isotherm

b.

Freundlich isotherm

c.

Gibbs isotherm

d.

BET isotherm

Question number: 36

» Physical Chemistry » Chemical Kinetics » Empirical Rate Laws and Temperature Dependence

Appeared in Year: 2013

MCQ▾

Question

Isotherm which has fractional coverage, linearly dependent on pressure at low pressure but almost independent at high pressure is called. (June)

Choices

Choice (4) Response
a.

Tonkin isotherm

b.

Langmuir isotherm

c.

Freundlich isotherm

d.

BET isotherm

Question number: 37

» Physical Chemistry » Chemical Kinetics » Enzyme Kinetics

Appeared in Year: 2015

MCQ▾

Question

Vmax and Km for an enzyme catalyst reaction are 2.0×103MS1 and 1.0 ×106 M, respectively. The rate of reaction when the substrate concentration is 1.0×106M : - (December)

Choices

Choice (4) Response
a.

0.5s1

b.

1.0×103s1

c.

3.0×103s1

d.

2.0×103 s1

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