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Explain Heat Capacity. |
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Answer» Solution :The quantity of heat required for increase in TRANSFER by 1 °C of any substance is called heat capacity (C) of that substance. `q= C. Delta T` where, `C=` Heat capacity We can measure the heat supplied by monitoring the temperature rise, PROVIDED we know the heat capacity. When C is large, a GIVEN amount of heat results in only a small temperature rise. Water has a large heat capacity i.e., a lot of energy is needed to raise its temperature. C is directly proportional to amount of substance. Molar Heat Capacity : Molar heat capacity of a substance, is the heat capacity for one mole of the substance and is the quantity of heat needed to raise the temperature of one mole by one degree celsius. Molar Heat Capacity `C_(m) = ((C)/( n))` Specific Heat Capacity : The specific heat capacity is the quantity of heat required to raise the temperature of one unit mass of a substance by one degree celsius. `q=c xx m xx Delta T = C Delta T` ( m = mass of substance) |
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