1.

What does one mean by exothermic and endothermic reactions? Give examples.

Answer»

Solution :Exothermic reaction: In exothermic reaction, HEAT is evolved during the reaction which is indicated by .+ heat sign on the right HAND side of the equation.
For example:
`CaO(s)+H_(2)O(L)rarrCa(OH)_(2)(aq)+"Heat"`
Endothermic reaction: In this reaction, heat is absorbed which is indicated by PUTTING .+ heat. sign on the left hand side of the equation.
For example:
`N_(2)(g)+O_(2)(g)+"Heat"rarr2NO(g)`


Discussion

No Comment Found

Related InterviewSolutions