Rates Of Reactants

Question 1

Define rate of reaction

Answer 1

The rate of reaction is defined as the change in concentration per unit time

Question 2

Define instantaneous rate of reaction

Answer 2

The rate of reaction at any one particular time during the reaction

Question 3

Factors affecting rate of reactions

Answer 3

1) nature of reactants
2) particle size
3) concentration
4) température
5) catalysts

Question 4

Define a catalyst

Answer 4

A substance that alters the rate of chemical reaction but is not consumed in the reaction

Question 5

What is the catalytic converter

Answer 5

Device in the exhaust system of a motor vehicle which contains catalyst to convert pollutants in the exhaust gases to listen to less harmful substances

Question 6

Define catalyst poison

Answer 6

Substance that makes a catalyst inactive

Question 7

What is the collision theory

Answer 7

1) for a reaction to occur, the reacting particles must collide with each other

Question 8

What is effective collision

Answer 8

A collision is one that results in the formation of products

Question 9

What is activation energy

Answer 9

The minimum energy that colliding particles must have for a reaction to occur for

I.E) the minimum energy required for effective collisions between particles to occur