Question

Explain :-
a) Exothermic reaction
b) Endothermic reaction

• Quality answer needed .​

Answer 1

• Exothermic reactions are reactions or processes that release energy, usually in the form of heat or light. In an exothermic reaction, energy is released because the total energy of the products is less than the total energy of the reactants.

• Endothermic reactions are chemical reactions in which the reactants absorb heat energy from the surroundings to form products. These reactions lower the temperature of their surrounding area, thereby creating a cooling effect. ... The energy supplied/released can be of various forms (such as heat, light, and electricity).

Hope it helps :)

Answer 2

$\huge\boxed{\fcolorbox{red}{ink}{SOLUTION:}}$

▬▬▬▬▬▬▬▬▬▬▬▬

$\huge\fbox\pink{✯Exothermic reaction✯}$

The process in which heat is given out is called and exothermic process.

When NaO H (s) dissolve in water then there is evolution of heat leading to rise in temperature.

▬▬▬▬▬▬▬▬▬▬▬▬

$\huge\fbox\pink{✯Endothermic reaction ✯}$

The reaction in which heat is absorbed is called endothermic reaction.

When KNO 3 (s) dissolve in water there is absorption of heat during the reaction and the temperature falls.

▬▬▬▬▬▬▬▬▬▬▬▬

$\huge\boxed{\dag\sf\red{Thanks}\dag}$