Physical Chemistry-Chemical Kinetics (CSIR Chemical Sciences): Questions 9 - 13 of 41

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Question number: 9

» Physical Chemistry » Chemical Kinetics » Steady State Approximation

Appeared in Year: 2015

MCQ▾

Question

Correct from for simple Langmuir isotherm is: - (June)

Choices

Choice (4) Response

a.

θ=Kp

b.

θ=Kp

c.

θ=1+KpKp

d.

θ=Kp1+Kp

Question number: 10

» Physical Chemistry » Chemical Kinetics » Homogeneous Catalysis

Appeared in Year: 2012

MCQ▾

Question

Suppose ground stationary state of harmonic oscillator with force constant k is given by - φ0 = exp [Ax2] . Then, A should depend on k as – (December)

Choices

Choice (4) Response

a.

Aαk12

b.

Aαk

c.

Aαk13

d.

Aαk12

Question number: 11

» Physical Chemistry » Chemical Kinetics » Photochemical Reactions

Appeared in Year: 2015

MCQ▾

Question

In a photochemical reaction, radical are formed according to the equation.

C4H10+hυk1k12C2H5

C2H5+C2H5k2C2H6+C2H4

IfIisintensity of light absorbed, rate of overall reaction is proportional to (June)

Choices

Choice (4) Response

a.

I

b.

I12[C4H10]

c.

I12

d.

I[C4H10 ]

Question number: 12

» Physical Chemistry » Chemical Kinetics » Determination of Reaction Mechanisms

MCQ▾

Question

Concentration of a reactant decreases linearly with time. What is order of reaction? (CSRD MHRD Sample Paper Question)

Concentration of a reactant decreases linearly with time

Concentration of a Reactant Decreases Linearly With Time

Graph showing concentration of a reactant decreases linearly with time

Choices

Choice (4) Response

a.

1

b.

0

c.

2

d.

Fraction

Question number: 13

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

Appeared in Year: 2013

MCQ▾

Question

Rate constant of a unimolecular reaction was 2.66×103 and 2.2×101s1 at T = 120 k and T = 360 k. Rate constant (in s-1) at 240k would be (December)

Choices

Choice (4) Response

a.

2.4 × 10 - 1

b.

1.8 × 10 - 3

c.

4.8×102

d.

2.4×102

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