Question

How can we know that a reaction is exothermic and endothermic?

Answer 1

exothermic reaction releases lot of heat and energy..

while endothermic reaction consumes lot of heat and energy..

Answer 2

Answer:

• If the energy level difference between substrate (S) and product (P) is such that P is at a lower level than ‘S’ the reaction is said to be exothermic, whereas when substrate (S) is at lower level than product (P), the reaction is endothermic.