Categories > thermodynamics > First Law of Thermodynamics > The specific heat of hydrogen gas at constant pressure is ${{C}_{P}}=3.4\times {{10}^{3}}cal/kg{{\,}^{o}}C$ and at constant volume is ${{C}_{V}}=2.4\times {{10}^{3}}cal/kg{{\,}^{o}}C.$. If one kilogram hydrogen gas is heated from ${{10}^{o}}C$ to ${{20}^{o}}C$ at constant pressure, the external work done on the gas to maintain it at constant pressure is

thermodynamics

Question: The specific heat of hydrogen gas at constant pressure is ${{C}_{P}}=3.4\times {{10}^{3}}cal/kg{{\,}^{o}}C$ and at constant volume is ${{C}_{V}}=2.4\times {{10}^{3}}cal/kg{{\,}^{o}}C.$. If one kilogram hydrogen gas is heated from ${{10}^{o}}C$ to ${{20}^{o}}C$ at constant pressure, the external work done on the gas to maintain it at constant pressure is


1) ${{10}^{5}}\,$cal
2) ${{10}^{4}}$cal
3) ${{10}^{3}}$ cal
4) $5\times {{10}^{3}}$cal
Solution: Explanation: No Explanation
First Law of Thermodynamics

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