## heat

$\Delta U=q+w$

705121606
Posts: 68
Joined: Wed Sep 18, 2019 12:17 am

### heat

What is the difference between heat, heat capacity, and specific heat capacity? They all seem so similar to me and I get confused

Brian Tangsombatvisit 1C
Posts: 119
Joined: Sat Aug 17, 2019 12:15 am

### Re: heat

q is heat and is in units of joules. It is really heat transfer from one object to another. Heat capacity is the amount of heat needed to raise an object by 1 degree Celsius, in units of J/C. It is an extensive property since it depends on the amount of material present (larger object = larger heat capacity). Specific heat capacity, on the other hand, is the amount of heat needed to raise one gram of an object by 1 degree Celsius, which is in units of J/gxC. This is an intensive property because it doesn't matter how much of an object you have, it will always be the same for that object.

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