What does one mean by endothermic reaction? Give example.
endothermic : Reactions that absorb energy or require energy in order to proceed are called endothermic reactions.
Example:N2 (g)+O2 (g)`->`2NO (heat absorbed)
Endothermic reaction – A reaction in which heat is absorbed is called endothermic reaction.
Example – When silver chloride is left in the sunlight, it absorbs heat and turns grey because of formation of silver metal.