Question

Total heat of a substance is known as : Internal energy (i) Enthalpy (ii) Entropy (ii) Thermal conductivity​

Answer 1

Answer:

internal energy is the answer

Answer 2

The correct answer is option (a) Enthalpy.

• Enthalpy is a thermodynamic system property, a sum of internal system power as well as a product of pressure and volume.
• It is a state function that is used in many measurements in chemical, biological, and physical systems under constant pressure, which is easily provided by a large ambient atmosphere. Pressure term — volume indicates the function required to determine the body size of a system, that is, to compensate for it by removing the surrounding area. The pressure-term term is too small for solids and liquids in normal conditions, and too small for gases.
• Therefore, enthalpy is a stand-in for energy in chemical systems; bond, lattice, solvation and other "powers" in chemistry are enthalpy differences.