if a chemical reaction is reversed, what happens to the enthalpy of the reaction?\nthe enthalpy of the…

if a chemical reaction is reversed, what happens to the enthalpy of the reaction?\nthe enthalpy of the reaction becomes zero.\nthe enthalpy of the reaction doubles.\nthe sign of the enthalpy of the reaction reverses.\nthe enthalpy of the reaction is halved.

if a chemical reaction is reversed, what happens to the enthalpy of the reaction?\nthe enthalpy of the reaction becomes zero.\nthe enthalpy of the reaction doubles.\nthe sign of the enthalpy of the reaction reverses.\nthe enthalpy of the reaction is halved.

Answer

Brief Explanations:

Enthalpy ($\Delta H$) is the heat - change of a reaction. When a chemical reaction is reversed, the products become reactants and vice - versa. The heat absorbed or released is of the same magnitude but opposite in direction. So the sign of the enthalpy changes.

Answer:

The sign of the enthalpy of the reaction reverses.