Explain how a star does not get too hot or too cold

its a ball of fire that burn till it dies it is always around the same temperature

b i think it’s a water wheel turning in a stream

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.