Physical Chemistry-Chemical Kinetics (CSIR (Council of Scientific & Industrial Research) Chemical Sciences): Questions 22 - 25 of 41

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Question number: 22

» Physical Chemistry » Chemical Kinetics » Enzyme Kinetics

Appeared in Year: 2014

MCQ▾

Question

In Lineweaver Burk plot of (initial rate) -1 vs Equation for an enzyme catalyzed reaction following Michaelis Menten mechanism, the Y-intercept is 5000 M-1 s, If initial enzyme concentration is Equation M, the turnover number is________ (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 23

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

Appeared in Year: 2012

MCQ▾

Question

A bacterial colony grows most commonly by call division. The change in population due to cell division in an actively growing colony is Equation The population of bacterial colony at time t [N0 = N (t = 0) ] (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 24

» Physical Chemistry » Chemical Kinetics » Determination of Reaction Mechanisms

Appeared in Year: 2013

MCQ▾

Question

First order gaseous reaction is 25 % complete in 30 min at 227 Equation and in 10 minutes at 237 Equation . Activation energy of reaction is closest to (R = 2 cal k-1mol-1) (December)

Choices

Choice (4) Response

a.

110 k cal/mol

b.

55 k cal/mol

c.

5.5 k cal/mol

d.

27 k cal/mol

Question number: 25

» Physical Chemistry » Chemical Kinetics » Complex Reactions

Appeared in Year: 2013

MCQ▾

Question

Equation In mechanism of this reaction first step is: (December)

Choices

Choice (4) Response

a.

Dissociation of H2 into H Equation radical

b.

Reaction of Br Equation radical with H2

c.

Dissociation of Br2 into Br Equation radical

d.

Reaction of H Equation radical with Br2

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