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A cylinder contains 4.56 mol of helium gas at a temperature of 310 K. The molar specific heat of helium at con- stant volume is 12.5 J/Kmol. How much heat must be transferred to the gas to increase its temperature to 470 K if it is heated at constant volume? The molar specific heat of helium at constant presure is 20.8 J/Kmol. How much thermal energy must be transferred to the gas at constant pressure to raise the temperature to 470 K?

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