Changing Temperature and Pressure Can Get You More Product

Question 1

In a reversible reaction, what does the ‘position of equilibrium’ depend on?

Answer 1

Very strongly depends on the temp and pressure of the reacting mixture

Question 2

What happens if you deliberately alter the temp and press?

Answer 2

You can move the ‘position of equilibrium’ to give more product and less reactants

Question 3

Temp - all reactions are …. in one direction and ….. in the other

Answer 3

Exothermic in one

Endothermic in the other

Question 4

Temp - What happens if you raise the temp?

Answer 4

The endothermic reaction will increase to use up the extra heat

Question 5

Temp - What happens if you reduce the temp?

Answer 5

The Exothermic reaction will increase to give out more heat

Question 6

Press - What do most gaseous reactions have more of …. of gas in one side than the other?

Answer 6

More molecules (or moles)

Question 7

Press - What happens if you raise the pressure?

Answer 7

It will encourage the reaction which produces fewer molecules of gas

Question 8

Press - What happens if you lower the pressure?

Answer 8

It will encourage the reaction which produces more molecules of gas