Question #6618a

1 Answer
Jun 22, 2017

Endothermic: Products energy will end higher than Reactants
Exothermic: Products energy will end lower than Reactants

Explanation:

Endothermic is when the products gain heat from the surroundings, hence the products have greater temperature than the reactants. More temperature means more energy, so the products would have more energy than the reactants. The energy profile diagram would spike up and stay at a higher level than the initial energy (reactants energy). It would look like:

www.docbrown.info

Exothermic is when the products lose heat to the surroundings, hence the products have lower temperature than the reactants. Lower temperature means less energy, so the products would have less energy than the reactants. The energy profile diagram would spike up, and dip below the initial energy (reactants energy). It would look like:

www.docbrown.info