Specific Heat Capacity and Heat Of Vapourization Of Water | BIOLOGY LECTURES

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SPECIFIC HEAT CAPACITY OF WATER
Water's high heat capacity is a property caused by hydrogen bonding among water molecules. ... Specific heat is defined as the amount of heat one gram of a substance must absorb or lose to change its temperature by one degree Celsius. For water, this amount is one calorie, or 4.184 Joules.

HEAT OF VAPOURIZATION
The heat of vaporization of water is the highest known. The heat of vaporization is defined as the amount of heat needed to turn 1 g of a liquid into a vapor, without a rise in the temperature of the liquid. ... Note that a latent heat is associated with no change in temperature, but a change of state.

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