What does the symbol ∆H stand for?
one Calorie given off by a reaction
the heat capacity of a substance***
the heat of a reaction for a chemical reaction
the specific heat of a substance
The heat of a reaction for a chemical reaction.
The symbol ∆H stands for the heat of a reaction in a chemical reaction. It represents the change in enthalpy, which is the total heat content of a system. It can be measured in various units, such as joules (J) or calories (cal).
To determine the value of ∆H for a chemical reaction, you would typically need to know the amount of heat absorbed or released during the reaction. This can be measured experimentally using a calorimeter or calculated using heat capacity or specific heat.
The correct answer is "the heat of a reaction for a chemical reaction."