Free Printable Chemical Kinetics

1.

Reaction rates can change with

a)

Temperature

b)

The addition of catalyst

c)

Reactant concentration

d)

All of these above

2.

The quantity of K in rate law expression

a)

Independent of concentration

b)

Is called the Arrhenius constant

c)

Is dimensionless

d)

Is independent of temperature

3.

As the temperature of the reaction increased, the rate of the reaction increases because

a)

Reactant molecule collide with greater energy

b)

Reactant molecules collide with less frequently

c)

Reactant molecules collide with less frequently and with greater energy

d)

Activation energy is lowered

4.

In a series of reaction, which is the rate determining step

a)

The simplest reaction

b)

The slowest reaction

c)

The fastest reaction

d)

The main reaction involving the major reactant

5.

Rate law for chemical reactions are determined

a)

By experiment

b)

By examining the coefficient in balanced chemical equation

c)

From equilibrium constant

d)

From the rates of forward and reverse reactions of the system in equilibrium

6.

$Consider\ the\ reaction:2A→3B.\ Theaverage\ rate\ ofappearance\ of\ B\ is\ given\ by\ [B]/dt.\ How\ the\ average\ ofappearanceofB\ related\ to\ the\ average\ rateofdisappearanceofA?$

a)

$-2[A])/3t$

b)

$[A]/t$

c)

$-[A])/t$

d)

$-3[A])/2t$

7.

Based on the collision model, the atoms in the top of potential energy ‘’hill’’ are called

a)

Top of hill

b)

Activation energy

c)

Transition state

d)

Steric factor

8.

$For\ a\ certain\ reaction,\ the\ rate=k[NO]2[O2],when\ the\ initial\ concentration\ of\ NO\ is\ tripled,the\ initial\ rate-$

a)

Decreases by a factor of nine

b)

Increase by a factor of six

c)

Increase by a factor of nine

d)

Decreases by a factor of six

9.

The half-life period of a first-order process

a)

Depends on reactant concentration raised to the first power

b)

Is inversely proportional to square of reactant concentration

c)

Is inversely proportional to reactant concentration

d)

Is totally independent of reactant concentration

10.

$For\ a\ certain\ reaction,\ a\ plot\ of\ln[A]\ versus\ t\ gives\ a\ straightline\ of\ with\ a\ slope\ of-1.46s-1.\ The\ order\ ofthe\ reaction\ A\ is-$

a)

0

b)

3

c)

1

d)

2

Chemical Kinetics

Total questions: 10

Worksheet time: 10mins

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