How is constant volume heat capacity different from constant pressure? - Real Chemistry
Автор: Real Chemistry
Загружено: 2017-03-21
Просмотров: 3758
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In this video we compare constant volume heat capacity to constant pressure heat capacity. Constant volume heat capacity is the energy needed to raise the temperature of a system in a sealed container. Constant pressure heat capacity is the energy needed to raise the temperature of a system in an open container or piston. Because some heat transfered to a constant pressure system goes to work, constant pressure heat capacity is always larger than constant volume heat capacity for gasses. For an ideal gas: Cp = Cv + R.
If PV work is zero, the two heat capacities are identical.
For an introduction to heat capacity see:
• How to calculate temperature changes with ...
For calc based heat capacity see:
• Calculus based heat capacity - Real Chemistry
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