The first law of thermodynamics, also known as the law of energy conservation, protects energy. It states that energy cannot be created or destroyed, only transformed from one form to another.
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Steam burns hands more than boiling water because steam contains latent heat. When steam condenses on the skin, it releases this latent heat, transferring more energy to the skin compared to boiling water at the same temperature. This additional heat ...
The latent heat of vaporization of water is 536 Cal/g. This value represents the amount of heat required to convert 1 gram of water at its boiling point into steam without a temperature change.
The latent heat of melting of ice is 80 Cal/g. This value represents the amount of heat required to convert 1 gram of ice at its melting point into water without changing its temperature.
The heat required to change a unit mass of a solid substance from solid to liquid at its melting point is called the latent heat of melting of solid. This energy is needed to break the bonds holding the solid ...