Q6 of 22 Page 17

Answer these. (ASI)

How much energy is released or absorbed when 1gm of water at 100oc freezer to ice at 0oC?

Energy transferred when 1g of boiling water at 100oC cools to water at 0oC is as found in the above question is - 100cal


Now, latent heat change on changing the state from water to ice = 80cal/g


Hence, energy released when 1gm of water at 100oc freezes to ice at 0oC = 100 + 80 = 180cal


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