f3 physics

The specific heat capacity of a substance is the heat (energy) needed to raise 1 kilogram of the substance by 1 degree Celsius. (In other words, the specific heat capacity of a substance is also the heat (energy) released when 1 kilogram of the substance decreases its temperature by 1 degree Celsius.) For example, the specific heat capacity of water is 4200 J kg-1 oC. This means that 4200 J of heat (energy) is needed to raise 1 kg of water by 1oC.

某物質的比熱容量，定義為升高 1 千克該物質 1 攝氏度所需的熱（能量）。（換言之，某物質的比熱容量，亦等於 1 千克該物質降低 1 攝氏度所放出的熱（能量）。）例如，水的比熱容量是 4200 J kg-1 oC，表示把 1 kg 的水升溫 1oC，需要 4200 J 的熱（能量）。
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