Question

What happens to an endothermic reaction when an equilibrium system is heated?

Answer 1

Answer:

The system shifts forward

Explanation:

The forward reaction is favoured in order to reduce the disruption (excess heat) to the system. Position of equilibrium shifts rightwards of the equation for excess heat to be absorbed during the endothermic forward reaction

Answer 2

Answer: The system shifts forward.

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.

This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

If a reaction is endothermic reaction in which heat is absorbed in the reaction.

$A+B\rightleftharpoons C+D$  $\Delta H=+ve$

If the equilibrium system is heated that means the temperature is increased, so according to the Le-Chatlier's principle , the equilibrium will shift in the direction where decrease in temperature occurs. As, the forward reaction is a endothermic reaction, forward reaction will decrease the temperature. Hence, the equilibrium will shift in the forward direction.