🔹Topic 6

Question 1

How does enthalpy for a reversible reaction in one direction compare with energy change in the other direction?

Answer 1

If enthalpy is positive, the forward reaction is endothermic and if negative, the forward reaction is exothermic

Question 2

What happens when water is added to anhydrous copper sulphate?

Answer 2

It goes from blue to pink

Question 3

Explain why chemists refer to equilibrium as dynamic rather than static?

Answer 3

As dynamic means there’s movement and reactants are still turning into products and products to reactants just at the same rate

Question 4

If more reactants are added to a reversible reaction then what happens to the products?
Explain why this is the case

Answer 4

They will be produced at a slower rate in larger quantities because the system will oppose the change by removing the reactants and turning it into product