Free Printable Reaction Kinetics

1.

Chemical kinetics is the study of the (a) , the (b) that affect these rates, and the (c) by which reactions occur.

Choose from the below words

rates of chemical reactions

factors

reaction mechanisms

2.

The rate of reaction is the (a) in the concentration of a reactant or product per unit of (b)

Choose from the below words

change

time.

increase

mass

pressure

3.

2N₂O₅(g) → 4NO₂(g) + O₂(g)

differential rate equation of following reaction is

a)

$rate\ =-\frac{1}{2}\frac{\text{d}\left[N_2O_5\right]}{\text{d}t}\ =+\frac{1}{4}\frac{\text{d}\left[NO_2\right]}{\text{d}t}\ =\ +\frac{\text{d}\left[O_2\right]}{\text{d}t}$

b)

$rate\ =-\frac{\text{d}\left[N_2O_5\right]}{\text{d}t}\ =+\frac{\text{d}\left[NO_2\right]}{\text{d}t}\ =\ +\frac{\text{d}\left[O_2\right]}{\text{d}t}$

c)

$rate\ =\frac{\text{d}\left[N_2O_5\right]}{\text{d}t}\ =\frac{\text{d}\left[NO_2\right]}{\text{d}t}\ =\ \frac{\text{d}\left[O_2\right]}{\text{d}t}$

d)

$-\frac{\text{d}\left[N_2O_5\right]}{\text{d}t}\ =+\frac{\text{d}\left[NO_2\right]}{\text{d}t}\ =\ +\frac{\text{d}\left[O_2\right]}{\text{d}t}$

4.

Higher concentration of reactant molecules leads to (a) presence per unit volume.

Choose from the below words

more particles

less particles

high temperature

high bonding

5.

(a) in frequency of collision, results in higher pressure

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Increase

decrease

minimise

combine

6.

The higher the pressure, the (a) the rate of reaction.

Choose from the below words

higher

lower

better

smaller

7.

The smaller the size of reacting particles, the bigger the (a) for reaction.

Choose from the below words

total surface area exposed

molecule

total number of atom

8.

Best statement for catalyst

a)

substance that changes the rate of a reaction without itself being used up.

b)

substance that need more if you want the reaction speed more

c)

substance that not involve in the reaction

d)

substance must be high for better reaction

9.

Catalyst will increase the rate of reaction by (a) that has lower (b) .

Choose from the below words

providing alternative pathway

activation energy

increase the collision

concentration

10.

Effective collision must....

a)

collide with correct orientation

b)

Collide with sufficient energy

c)

collide with better sound

d)

collide with better surrounding

Reaction Kinetics

Total questions: 10

Worksheet time: 12mins

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