![]() Latent heat of fusion = L fusion = 3.36 × 10 5 J/kg Latent heat of vapourisation = L vapour = 2.25 × 10 6 J/kg The energy transferred or released when 1 gm of water at 0° C freezes to ice at 0° C. Latent heat of fusion of ice (L) = 80 cal/gm ∴ Total energy released = 540 + 100 = 640 cal.Ĭ) How much energy is released or absorbed when 1 gm of water at 0° C freezes to ice at 0° C? m = 1 gm.ĭifference in temperature = 100-0 = 100☌. The amount of heat energy released when 1 gm of boiling water at 100☌ condenses to water at 100 ☌. Latent heat of vapourisation = 540 cal/gm The amount of heat energy released when 1 gm of boiling water at 100☌ condenses to water at 100☌ī) How much energy is transferred when 1 gm of boiling water at 100° C cools to water 0° C? ![]() Latent heat of vapourisation = 540 cal/gm.
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