What is the amount of heat required to change the temperature of one gram of water by one degree Celsius? isomer calorie evaporation heat of vaporization

calorie

Explanation:

Out of the given options, calorie is the answer.

Calorie was first originally defined as the amount of the heat which is required to raise the temperature of one gram of water which is placed at 1 atmospheric standard pressure to one degree celsius.

Later in 1925, it was defined in terms of Joules.

The conversion factor is :- 1 Calorie = 4.2 J

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.