Which of the following is not correct ?

Options

A. Dissolution of a salt in excess of water may be endothermic process
B. Neutralisation is always exothermic
C. The absolute value of enthalpy (H) can be determined by calorimeter
D. The heat of reaction at constant volume is denoted by `deltaU`

Answer

C

Explanation

By calorimetry we can determine change in enthalpy.