The heat required to raise the temperature of unit mass of a substance by one degree Celsius is
Specific heat refers to the amount of heat required to raise the temperature of one unit mass of a substance by one degree Celsius. It is a characteristic property of the substance and is measured in units of energy per unit mass per degree Celsius.
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The correct answer is [A] Specific heat. Specific heat is the amount of heat energy required to raise the temperature of one unit mass of a substance by one degree Celsius. It is a characteristic property of the substance and is used to quantify its ability to store or release thermal energy. Heat capacity, on the other hand, refers to the total amount of heat energy required to raise the temperature of an object by one degree Celsius, regardless of its mass. Water equivalent is the mass of water that would absorb or release the same amount of heat as the given substance, while latent heat is the heat absorbed or released during a phase change at constant temperature. Therefore, specific heat specifically addresses the heat required for temperature change per unit mass of a substance.