Question

what is definition of exothermic and endothermic process​

Answer 1

when we breath in,the process is called endothermic and when we breadth out,this process is called exothermic

Answer 2

Exothermic reaction:

• Reaction in which heat energy is released with the formation of a solution .
• for e.g:

CaO+H2O-----> Ca(OH)2+ ∆[Heat]

Endothermic reaction:

• Reaction in which heat energy is utilized for the formation of a new product.
• for e.g:

2 Pb(No3)2--∆-->2PbO+4NO2+O2