Question

question time! the change in enthalpy of a reaction is equal to the enthalpy of the reactants minus the enthalpy of the products. true false how did i do? question time! when a reaction is exothermic, the enthalpy of the products is ____ the reactants. greater than equal to less than how did i do?

Explanation:

1. The formula for the change in enthalpy ($\Delta H$) of a reaction is $\Delta H=H_{products}-H_{reactants}$, not $H_{reactants}-H_{products}$. So the first - statement is false.
2. In an exothermic reaction, heat is released. $\Delta H < 0$. Since $\Delta H=H_{products}-H_{reactants}<0$, it implies that $H_{products}

Answer:

1. B. False
2. C. less than