Eli5 : What is “heat capacity”?

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q = C ∆T and q = mc ∆T

where do those formulae come from? can you explain intuitively?

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Heat capacity is the amount of energy you have to put in to an object to get its temperature to go up by one degree.

So the standard measurement is joules per kelvin (how many joules to make it go up by one degree kelvin.

C is the specific heat capacity of the object (the amount of energy required to raise the temperature of 1 gram by 1 degree K)

∆T is the change in temperature.

q is the amount of heat lost by a particular sample

[khan academy have an excellent unit about it](https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:thermodynamics/x2eef969c74e0d802:heat-capacity-and-calorimetry/v/heat-capacity)

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