If you had a balloon that had a volume of 1463 ml and was at a temperature of 80OC, what temperature in OC would you have to change it to if you wanted the balloon to have a volume of 1.13 liters?

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.