Explain why for solids and liquids the ratio of Cp and Cv (heat capacity at constant pressure and constant volume) is nearly one, while for a gas like nitrogen Cp/Cv = 1.4

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Explain why for solids and liquids the ratio of Cp and Cv (heat capacity at constant pressure and constant volume) is nearly one, while for a gas like nitrogen Cp/Cv = 1.4

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Physics: Principles with Applications

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