Question

Is there latent heat during transformation from gaseous to liquid
phase? What happens to this heat?

Answer 1

Answer:

Any change of state involves addition of heat (heating) or removal of heat (cooling).

So, during heating, we add heat to the system from outside - like a flame for example.

During cooling, we remove the heat from the system by external cooling.

If a system is not closed but is open to the environment, then heat gain / loss takes place by one or more of the three processes - conduction, convection and radiation.

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