Definitions of Heat Capacities

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Kimberly 1H
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Joined: Fri Sep 28, 2018 12:17 am
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Definitions of Heat Capacities

Postby Kimberly 1H » Thu Feb 07, 2019 8:55 pm

What's the difference between heat capacity, specific heat capacity, and molar heat capacity?

Jennifer Su 2L
Posts: 47
Joined: Wed Nov 21, 2018 12:20 am

Re: Definitions of Heat Capacities

Postby Jennifer Su 2L » Thu Feb 07, 2019 9:04 pm

-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.

Diana Bibireata 1B
Posts: 60
Joined: Fri Sep 28, 2018 12:23 am

Re: Definitions of Heat Capacities

Postby Diana Bibireata 1B » Thu Feb 07, 2019 10:07 pm

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.


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