Question

The enthalpy of a system is the same as its:

A. specific heat.
B. heat of reaction.
C. heat of combustion.
D. heat content.

Answer 1

Ans D) heat content

Enthalpy (H) is a thermodynamic state function which according to the first law of thermodynamics is a sum of internal energy (E) and the pressure- volume (PV) work.

i.e. H = E + PV

Thus, enthalpy is the total heat content of a system which includes contributions from both kinetic and potential energy.

Answer 2

The answer for above statement:

D. heat content.

Step-by-step explanation:

Enthalpy is a measure of the total energy of a thermodynamic system. It includes the internal energy, which is the energy required to create a system, and the amount of energy required to make room for it by displacing its environment and establishing its volume and pressure.

Heat content - (thermodynamics) a physical science amount adequate the interior energy of a system and the merchandise of its volume and pressure.