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 227Equation and in 10 minutes at 237Equation . 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 HEquation radical

b.

Reaction of BrEquation radical with H2

c.

Dissociation of Br2 into BrEquation radical

d.

Reaction of HEquation radical with Br2

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