Latent heat of vaporization = 540cal/g
Energy transferred when 1g of boiling water at 100oC cools to water at 0oC is - 100cal
Latent heat change on changing the state from water to ice = 80cal/g
Hence, energy released when 1gm of steam at 100oC turns to ice at 0oC = 540 + 100 + 80 = 720cal.
Rate this question :