Temperature & Heat: Heat Capacity

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Heat

The energy due to movement of molecules within a body

Scalar quantity

Joules (J)

Heat transfer occurs from areas of higher temperature to areas of lower temperature

N.B. Heat is not the same as temperature

Heat Capacity

Amount of heat required to raise the temperature of a body by 1 K

Scalar quantity

Joule per kelvin (J/ K)

Q = CΔθ

Q = Energy

C = Heat capacity of body

Δθ = Change in temperature

Specific Heat Capacity

Amount of heat required to raise the temperature of 1 kg of a substance by 1 K

Scalar quantity

Joule per kilogram per kelvin (J / kg/ K)

Q = mcΔθ

m = Mass of body

c = Specific heat capacity

http://www.youtube.com/watch?v=BclB8UaSH4g (Einbetten)

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