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Define two specific heats of gas. Write ...

Define two specific heats of gas. Write the relation between them.

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For gases, specific heat capacity is known as molar specific heat capacity.
At constant volume, the quantity of heat necessary to increase the temperature of one mole of a gas from `14.5^@ C` to `15.5^@ C` is called molar specific heat capacity `C_V` at constant volume.
At constant pressure, the quantity heat necessary to increase the temperature of one mole of a gas from `14.5^@C` to `15.5^@ C` is called molar specific heat capacity `C_P` at constant pressure.
The relation between these two molar specific heat capacity is `C_P-C_V=R`.
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