The sum of internal energy U and the product of pressure and

The sum of internal energy (U) and the product of pressure and volume Enthalpy Entropy

Solution

Entropy is a measure of disorder or randomness of a system. An ordered system has low entropy. A disordered system has high entropy.

Enthalpy is defined as the sum of internal energy of a system and the product of the pressure and volume of the system. H = U + pv

Therefore answer is enthalpy