What do you understand by exothermic reaction and endothermic reaction? Give one example of each type.

What do you understand by exothermic reaction and endothermic reaction

1.	What do you understand by exothermic reaction and endothermic reaction? Give one example of each type.
Answer» Solution :Exothermic reactions : Reactions which evolves HEAT are known to be as exothermic reactions. Evolution of heat PRODUCED can be in the form of `.+. sign or DeltaH` in - sign along with product. `C_((s))+O_(2(g))to CO_(2(g))+393.5 kJ` `H_(2(g))+(1)/(2)O_(2(g)) to H_(2)O_((L)),` `DeltaH=-285.8 kJ"mol"^(-1)` Endothermic reactions : Reactions which absorbs heat are called endothermic reactions. Absorbed heat can be is shown as - sign or in terms of `DeltaH` with a+ singn E., `C_((s))+H_(2)O_((g)) to CO_((g))+H_(2(g))-131.4 kJ` `N_(2(g))+3H_(2(g)) to 2NH_(3(g)), DeltaH=+92.4 kJ mol^(-1)`