Chemistry - GCSE AQA - Combined Science - Higher: What happens to the yield ofC₂H₅OH (g) if we decrease the yield?

CH₄ (g) + H₂O (g) ⇌ C₂H₅OH (g)

△H = -45 kJ per mole.

Question

What happens to the yield ofC₂H₅OH (g) if we decrease the yield?

CH₄ (g) + H₂O (g)  ⇌ C₂H₅OH (g)

△H = -45 kJ per mole.

yxng.edxn · Accepted Answer

Increasing the temperature will decrease the yield of C₂H₅OH because the equilibrium shifts to the left, favoring the endothermic reaction.

'△H = -45 kJ per mole' means the forward reaction was exothermic. Since the total energy change is negative, it means it decreased.

What happens to the yield ofC₂H₅OH (g) if we decrease the yield? CH₄ (g) + H₂O (g) ⇌ C₂H₅OH (g) △H = -45 kJ per mole.