What is the temperature difference if 300 cal are used to warm water

The temperature difference is

Explanation:

The formula that is to used is :

ΔΔ

where ,

ΔT :

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.