400 g of steam at temperature `100^@C` condenses completely to form water at temperature `100^@ C` giving off heat of 216 kcal. Find out latent heat of vaporisation of water

Answer

Latent heat of vaporisation of water is 540 cal/g.

Explanation

Given Mass (m) `=400 kg ,`
heat released (Q) =216 kcal
= 216000 cla
To find: Latent heat of varporisation of water (L)
Formula Q=mL
Calculation:
Heat given off during Heat absorbed during
condensation = vaporistation
From of formula
`L=Q/m = (21600)/(400)= 540` cal/g