Question

Is there a qualitative difference between the enthalpy of a phase transition versus the enthalpy of a heating or cooling process? If so, explain those differences.​

Answer 1

Yes there is a difference between enthalpy of a phase transition and enthalpy enthalpy of a heating or cooling process.

In enthalpy of phase transition there is a change in phase of system . This can also be said as enthalpy of vaporization or latent heat of vaporization or or latent heat . Phase change is the most common observations in in the system .

Hindi enthalpy of cooling or heating there is normal increase or decrease in the system without change in the phase.

Eg - mCp *(T2 - T1) .. this is enthalpy of cooling and heating.