Physical Chemistry [CSIR (Council of Scientific & Industrial Research) Chemical Sciences]: Questions 22 - 26 of 337

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Question 22

Appeared in Year: 2012

Question MCQ▾

Arhenius parameter for thermal decomposition of NOCl, 2NOCl(g) ⇾ 2NO(g) + Cl2 (g)

Ea = 105 kJ/mol

RT = 2.5 kJ/mol Enthalpy (kJ/mol) of activated complex will be (December)

Choices

Choice (4)Response

a.

110

b.

102.5

c.

100

d.

105

Edit

Question 23

Question MCQ▾

Molar masses of monodisperse and polydisperse polymers obey: (CSRD MHRD Sample Paper Question)

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 24

Appeared in Year: 2013

Question MCQ▾

Overall rate law of following complex reaction.

(Fast equilibrium)

(Fast equilibrium)

(Slow)

By SSA, would be

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 25

Appeared in Year: 2013

Question MCQ▾

Concentration of a reactant undergoing decomposition was 0.1,0.08 & 0.067 mol L-1 after 1.0,2.0 and 3.0 hr respectively. Order of reaction is (December)

Choices

Choice (4)Response

a.

3

b.

0

c.

2

d.

1

Edit

Question 26

Appeared in Year: 2014

Question MCQ▾

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

Choices

Choice (4)Response

a.

b.

c.

d.

Edit