Physical Chemistry (CSIR Chemical Sciences): Questions 17 - 20 of 215

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Question number: 17

» Physical Chemistry » Chemical Kinetics » Enzyme Kinetics

Appeared in Year: 2013

MCQ▾

Question

For an enzyme catalyzed reaction a Lineweaver Burk plot gave the following data:

Slope = 40s, Intercept = 4 (m mol dm-3 s-1)

If initial concentration of enzyme is Equation mol dm-3 . What is catalytic efficiency of reaction? (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 18

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

Appeared in Year: 2014

MCQ▾

Question

Adsorption of a gas on a solid surface exhibits following isotherm. Which one of following statements is true? (June)

Isotherm explaining adsorption of gas on solid surface

Isotherm Explaining Adsorption of Gas on Solid Surface

Showing the Isotherm explaining adsorption of gas on solid surface

Choices

Choice (4) Response

a.

Heat of adsorption various exponentially with coverage

b.

Heat of adsorption varies monotonically with coverage

c.

Adsorption is multilayer

d.

Heat of adsorption is independent of coverage

Question number: 19

» Physical Chemistry » Chemical Kinetics » Determination of Reaction Mechanisms

Appeared in Year: 2012

MCQ▾

Question

If concept of half-life is generalized to quarter-life of a first order chemical reaction, it will be equal to (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 20

» Physical Chemistry » Chemical Kinetics » Collision and Transition State Theories of Rate Constants

Appeared in Year: 2013

MCQ▾

Question

Half-Life of a zero order reaction (A→P) is given by (k = rate constant) (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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