Answer to Question #192826 in Organic Chemistry for Ritik

Question #192826

Define heat capacity; molar heat capacity and specific heat capacity of a substance and give relations between them.


1
Expert's answer
2021-05-13T04:57:37-0400

Heat capacity or thermal capacity is a physical property of matter, defined as the amount of heat to be supplied to a given mass of a material to produce a unit change in its temperature.



Molar heat capacity is the amount of heat needed to raise the temperature of 1 mole of a substance by 1 Kelvin. The SI unit of molar heat capacity is the joule, so molar heat capacity is expressed in terms of J/mol·K.



Specific heat capacity is defined as the amount of heat required to raise the temperature of 1 kilogram of a substance by 1 kelvin (SI unit of specific heat capacity J kg−1 K−1).



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