Question

Why steam at 100°C is better for heating purposes than water at 100°C?​

Answer 1

Explanation:

Steam has more energy than boiling water. It possesses the additional latent heat of vaporization. Therefore, steam at 100 C is better for heating purposes than boiling water.

Answer 2

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✒ Steam at 100°C is better for heating purposes than water at 100°C because the energy of 1 kg of steam at 100°C is 22.6 x 10^5 joule which is more than that of 1 kg of water at the same temperature.

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✒ When the state of water changes from its liquid state to gaseous state it gain the latent heat of vaporisation.

✒ So the steam we obtain will contain heat energy due to temp 100°c plus the energy due to latent heat.

✒ Therefore,steam at 100°C contains more energy than water at 100°C.

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