Latent heat of vapor is
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.
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The latent heat of vaporization of water is 536 Cal/g, which is the amount of heat needed to convert 1 gram of water at its boiling point (100°C) into steam without any change in temperature. This latent heat is crucial in understanding why steam causes more severe burns than boiling water. When steam condenses on the skin, it releases this latent heat, transferring a substantial amount of energy to the skin. This energy transfer is significantly higher than that of boiling water at the same temperature, leading to more severe burns. Therefore, the correct answer to the latent heat of vaporization of water is [A] 536 Cal/g. This concept is essential in various fields, including thermodynamics and medical treatment of burns, highlighting the importance of understanding the thermal properties of substances.