Physical Chemistry-Chemical Kinetics (CSIR Chemical Sciences): Questions 5 - 8 of 41

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Question number: 5

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

Appeared in Year: 2014

MCQ▾

Question

Temperature dependence of a reaction is given by,

K=AT2exp(E0RT) .

Activation energy (Ea) of the reaction is (June)

Choices

Choice (4) Response

a.

E0

b.

E0+2RT

c.

2E0+RT

d.

E0+12RT

Question number: 6

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

Appeared in Year: 2013

MCQ▾

Question

Rate equation for reaction 2AB+B22AB2 is rate=k[AB][B2]. possible mechanism consistent with this rate is, (June)

Choices

Choice (4) Response

a.

2AB+B2slow2AB2

b.

AB+ABfastA2B2 ; A2B2+B2slow2AB2

c.

AB+B2slowAB3 ;AB3+ABfast2AB2

d.

AB+B2fastAB3 ;AB3+ABslow2AB2

Question number: 7

» Physical Chemistry » Chemical Kinetics » Complex Reactions

Appeared in Year: 2013

MCQ▾

Question

A chemical reaction involving

Non-Liner + Non-Linear molecule Non-Linear activated complex. Number of vibrational degree of freedom, in activated complex. (where N is number of atoms). (June)

Choices

Choice (4) Response

a.

(3N – 5)

b.

(3N − 6)

c.

(3N − 7)

d.

(3N − 8)

Question number: 8

» Physical Chemistry » Chemical Kinetics » Enzyme Kinetics

Appeared in Year: 2012

MCQ▾

Question

In Michaelis – Menten mechanism for enzyme kinetics, the expressed obtained as________

V[E]0[S]=1.4×1012104v[E]0

The values of k3 (molL-1 S-1) and K (Michaelis constant L1 ) respectively are (June)

Choices

Choice (4) Response

a.

1.4×1012,104

b.

1.4×108,104

c.

1.4×1012,104

d.

1.4×108,104

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