equilibrium

Question 1

how would you measure the mean rate of reaction

Answer 1

amount of products forrmed / amount of reactants used up

/time

Question 2

how would you measure the rate of reaction at a specific time

Answer 2

draw a tangent to the graph at the specific point and calculate change in y/change in x

Question 3

what is collision theory

Answer 3

that particles need to collide with enough energy in order for the reaction to take place

Question 4

4 factors which affect the rate of reaction

Answer 4

• temperature
• pressure/concentration
• presence of a catalyst
• surface area

Question 5

if the forward reaction is producing more molecules and the pressure is increased, what will happen

Answer 5

less product will be formed

Question 6

if the forward reaction is producing more molecules and the pressure is decreased, what will happen

Answer 6

the molecules of products formed will increase

Question 7

if the forward reaction is producing fewer molecules and the pressure is increased, what will happen

Answer 7

the amount of product will increase

Question 8

if the forward reaction is producing fewer molecules and the pressure is decreased, what will happen

Answer 8

the amount of product will decrease

Question 9

if the forward reaction is exothermic and the temperature increases, what will happen to the amount of product formed

Answer 9

the amount of product formed will decrease

Question 10

if the forward reaction is exothermic and the temperature decreases, what will happen to the amount of product formed

Answer 10

the amount of product formed will increase

Question 11

if the forward reaction is endothermic and the temperature increases, what will happen to the amount of product formed

Answer 11

the amount of product will increase

Question 12

if the forward reaction is endothermic and the temperature decreases, what will happen to the amount of product formed

Answer 12

the amount of product will decrease

Question 13

which way will the reaction move in favour of when the pressure is increased

Answer 13

in favour of the reaction which produces fewer molecules

Question 14

which way will the reaction favour if the temperature is increased

Answer 14

the endothermic reaction will be favoured

Question 15

if the forward reaction is endothermic, what would be the affect of increasing the temperature to the position of equilibrium

Answer 15

equilibrium would shift to the right

Question 16

if the forward reaction is exothermic, what would be the effect of decreasing the temperature?

Answer 16

yield of product would increase