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 |
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. |
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. |
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 |
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. |