Select all that apply.

When the products of a reaction are hotter than the reactants:

-The reaction is exothermic.
-The reaction is endothermic.
-The reactants lost internal energy.
-The change in enthalpy is positive.

Question

Select all that apply.

When the products of a reaction are hotter than the reactants:

-The reaction is exothermic.
-The reaction is endothermic.
-The reactants lost internal energy.
-The change in enthalpy is positive.

anonymous · Answer

The change in temperature is a measure of a difference in energy of the two states. As energy is conserved, there must be a source of this energy. Assuming that exothermic implies a release of heat from the system can you answer the question. Hint 2 out of the four apply.