Question

Answer these questions
B)How much energy is transferred when 1gm of boiling water at 100°c cool s at water at 0°c


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Answer 1

Explanation:

Whenever there is state change the temperature remains constant but still either energy is absorbed or released depending upon wheather heated or cooled.

The energy involved is called latent heat.

Here when water is condensed from boiling vapours to water at 100

0

C the energy is released called Latent heat of vapourisation and for water on condensing water its Latent heat of vapourisation is equal to 2257J/gm.

Hence energy released for 1gm on condensing to water is 2257J.

Answer 2

Whenever there is state change the temperature remains constant but still either energy is absorbed or released depending upon wheather heated or cooled.

The energy involved is called latent heat.

Here when water is condensed from boiling vapours to water at 100

0

C the energy is released called Latent heat of vapourisation and for water on condensing water its Latent heat of vapourisation is equal to 2257J/gm.

Hence energy released for 1gm on condensing to water is 2257J.