Question

What is hidden heat or latent heat? (3 marks)

Answer 1

Latent Heat Is the required To change 1 kg of substance either in Liquid or Steam...

It is of Two Types :-
( i ) Latent Heat Of fusion = The latent Heat require to convert 1 lg of solid into liquid ...

latent heat of ice to water = 80 joule / mole-kelvin....

( ii ) Latent Heat Of Vapourisatio. = The latent heat required to convert 1 kg of liquid into steam...

latent heat of vapourisation of Liquid to steam is 546 Joule / mole - kelvin ....but in calculations we cam take it as 540 joule / mole-kelvin....

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