Answer:
<u>Effect of adding heat to the reactions</u>
1. Shift the Reaction <em><u>backward</u></em> in First graph.
2.Shift the Reaction <em><u>forward</u></em> in second graph.
<u>Other ways to change the rate of a chemical reaction are :</u>
1. Addition of Catalyst
2.Increase in surface area
3. Increase in concentration of reactant.
Explanation:
Graph 1
It shows that the reaction is exothermic in which heat is released.
According to Le-Chatelier's rule : If temperature is increased
(heat is added) in an exothermic reaction , it will shift in backward direction.
Graph 2.
It shows that the reaction is endothermic in which heat is absorbed (taken)
According to Le-Chatelier's rule : If temperature is increased
(heat is added) in an endothermic reaction , it will shift in forward direction.