Question

for the equilibrium reaction of formation of NO from nitrogen gas and oxygen gas , which is an endothermic process. what will happen to concentration of nitrogen if:
1. temperature is decreased
2. pressure is reduced

Answer 1

Answer:

(1) since the reaction is an endothermic reaction the equilibrium constant will decrease, the concentration of nitrogen will increase as the reaction will shift backward to attain the new equilibrium

(2) if the pressure is being reduced then the volume must be increased, now the amount of gases being formed is equal to the amount of gases reacted i.e ∆ng = 0 , the reaction quotient is independent of volume so increasing or decreasing pressure by decreasing or increasing volume will not affect the concentration