Chemical Kinetics (NEET Chemistry): Questions 7 - 12 of 50

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Question number: 7

» Chemical Kinetics » Rate of a Chemical Reaction

MCQ▾

Question

In the reaction. N2+3H22NH3 , the expression –d [N2] /dt represents?

Choices

Choice (4) Response
a.

The average rate of reaction

b.

The instantaneous rate of reaction

c.

The rate of formation of N2

d. Question does not provide sufficient data or is vague

Question number: 8

» Chemical Kinetics » Factors Affecting the Rate of Reactions

MCQ▾

Question

In general for every 10℃ rise in temperature, the rate of reaction becomes approximately?

Choices

Choice (4) Response
a.

Ten times

b.

Half

c.

One tenth

d.

Doubles

Question number: 9

» Chemical Kinetics » Factors Affecting the Rate of Reactions

MCQ▾

Question

The influence of temperature on the rate of reaction is determined by?

Choices

Choice (4) Response
a.

Nernst equation

b.

Arrhenius equation

c.

Gibbs equation

d.

Van’t hoff equation

Question number: 10

» Chemical Kinetics » Arrhenius Theory

MCQ▾

Question

In an Arrhenius equation for a certain reaction the value of A and Ea are 4×1013sec-1 and 98.6kJ/mol . At what temperature, the reaction will have specific rate constant 1.1×10-3 sec-1?

Choices

Choice (4) Response
a.

328.24 K

b.

310.96 K

c.

340.3 K

d.

377.56 K

Question number: 11

» Chemical Kinetics » Rate of a Chemical Reaction

MCQ▾

Question

The decomposition of nitrogen pent oxide follows first order rate law. Calculate the rate constant from the given data?

t = 800 sec [N2O5] = 1.45 mol/L

t = 1600 sec [N2O5] = 0.88 mol/L

Choices

Choice (4) Response
a.

6.24×10-4 sec-1

b.

0.64×104 sec-1

c.

4.67×10-4 sec-1

d.

0.467×10-4 sec-1

Question number: 12

» Chemical Kinetics » Differential and Integral Forms of Zero and First Order Reactions

MCQ▾

Question

Which of the following equation is true regarding zero order reaction?

Choices

Choice (4) Response
a.

dx/dt=k[A]0=k

b.

dx/dt=k[A]0=k

c.

dx/dt=k[A]1=k

d.

Either A or B

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