Answer to Question #129947 in General Chemistry for Mary

Question

Hi,Thanks.
What is the definition of enthalpy change of reaction?
A)The temperature change that happens during a reaction.
B)The difference between the enthalpy of the products and the enthalpy of the reactants.
C)The heat required to overcome the activation energy of a reaction.
D)The energy required to raise the temperature of 1 gram of water by 1 Kelvin.

Answer 1

Enthalpy Change for a reaction is the difference between the enthalpy of products and enthalpy of reactants.