The main things happens in the isenthalpy process are
Enthalpy remains constant,.
Since enthalpy is proportional to temperature temperature is
also remain constant.
There is no work transfer or heat transfer take place.
In throttling process if we use ideal gas the temperature at the
exit of condenser and entry of evaporator remain same.
As the temperature of the refrigerants is higher than the fluid
which is need to be cooled, so instead of absorbing the from the
room refrigerant rejects the heat which is undesirable.
This is the reason ideal gas is not used as refrigerant for
throttling process.
