Steam at 100°C is better for heating purposes than water at 100°C because it contains more heat energy. When water is heated and turns into steam, it absorbs a large amount of heat energy in the form of latent heat of vaporization. This is the heat energy required to change water from a liquid to a gas without changing its temperature. As a result, steam at 100°C contains not only the heat energy required to raise the temperature of water to 100°C but also the additional heat energy absorbed during the phase change from liquid to gas .
When steam condenses back into water, it releases this latent heat, making it an effective heating agent.
You have to add lots of energy to 100∘C water to turn it into 100∘C steam as steam has a latent heat of vaporization also. Thus, steam can heat up more before cooling down to normal room temperature water. The amount of energy is equal to that of heating water from 0∘Cto 100∘C 5,4 times over.
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Explanation:
Steam at 100°C is better for heating purposes than water at 100°C because it contains more heat energy. When water is heated and turns into steam, it absorbs a large amount of heat energy in the form of latent heat of vaporization. This is the heat energy required to change water from a liquid to a gas without changing its temperature. As a result, steam at 100°C contains not only the heat energy required to raise the temperature of water to 100°C but also the additional heat energy absorbed during the phase change from liquid to gas .
When steam condenses back into water, it releases this latent heat, making it an effective heating agent.
Verified answer
You have to add lots of energy to 100∘C water to turn it into 100∘C steam as steam has a latent heat of vaporization also. Thus, steam can heat up more before cooling down to normal room temperature water. The amount of energy is equal to that of heating water from 0∘Cto 100∘C 5,4 times over.
Explanation:
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