Question

on the basis of evolution and absorption of heat chemical reactions can be divided in how many types​

Answer 1

Answer:

Chemical reactions can be divided in 2 types on the basis of evolution or absorption of heat in a chemical reaction.

Explanation:

1) Exothermic Reactions - The chemical reactions in which energy is evolved either in the form of light or heat.

Example- CaCl2 (s) + 2(H2O) ---> Ca(OH)2 (aq) + 2 HCl (g) + heat.

2) Endothermic Reactions - The chemical reactions in which energy is absorbed either in the form of heat or light.

Example- 6CO2 (g) + 6 H2O (g) + heat ---> C6H12O6 + 6O2 (g).

Hope it helps:)

Answer 2

Answer:

On the basis of evolution or absorption of heat , chemical reactions can be divided into two types.