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Definitions of Heat Capacities

Posted: Thu Feb 07, 2019 8:55 pm
by Kimberly 1H
What's the difference between heat capacity, specific heat capacity, and molar heat capacity?

Re: Definitions of Heat Capacities

Posted: Thu Feb 07, 2019 9:04 pm
by Jennifer Su 2L
-Heat Capacity- heat required to raise the temperature of an object by 1C.
-Specific Heat Capacity- divide heat capacity by the amount of substance present (g); heat required to raise the temperature of 1 gram of substance by 1C
-Molar Heat Capacity- divide heat capacity by moles of substance (mol); heat required to raise the temperature of 1 mole of substance by 1C

Note that Heat Capacity is an EXTENSIVE PROPERTY because it depends on the amount of substance, while molar and specific heat capacity are INTENSIVE PROPERTIES because they do not depend on the amount of substance.

Re: Definitions of Heat Capacities

Posted: Thu Feb 07, 2019 10:07 pm
by Diana Bibireata 1B
Heat capacity is the heat required to raise the temperature of an object by 1 degree C.
Specific heat capacity is the heat required to raise 1g of substance by 1 degree C.
Molar heat capacity is heat required to raise 1 mol of substance by 1 degree C.