Rates Of Reduction

Question 1

What is the rate of reaction?

Answer 1

The rate of reaction is defined as the change in concentration per unit time of any one reactant or product

Question 2

What is the instantaneous rate of reaction?

Answer 2

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

Question 3

What is a catalyst?

Answer 3

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

Question 4

What is an enzyme?

Answer 4

An enzyme is a substance that is produced by a living cell and acts as a biological catalyst

Question 5

What is homogenous catalysis?

2

Answer 5

Catalysis in which both the reactants and the catalyst are in the same phase,

I.e. there is no boundary between the reactants and the catalyst

Question 6

What is a heterogenous catalyst?

2

Answer 6

Catalysis in which the reactants and the catalyst are in different phases

I.e. there is a boundary between the reactants and the catalyst

Question 7

What is autocatalysis?

Answer 7

Catalysis in which one of the products of the reaction acts as a catalyst for the reaction

Question 8

What is a catalytic converter?

Answer 8

A catalytic converter is a device I’m the exhaust system of a motor vehicle which contains catalysts to convert pollutants in the exhaust gases to less harmful substances

Question 9

What is a catalyst poison?

Answer 9

A catalyst poison is a substance that makes a catalyst inactive

Question 10

What is an effective collision?

Answer 10

An effective collision is one that results in the formation of products

Question 11

What is a reaction profile diagram?

Answer 11

A graph which shows the change in energy of a chemical reaction with time as the reaction progresses