balloon is filled with 35.3 moles helium at a volume of 93 L at 0.1 C and 1.4 atm pressure. At constant atmospheric pressure, the temperature is increased to 26.3 C causing the balloon to expand to 131.1 L. Calculate dE of the helium in the balloon. Molar heat capacity is of helium is 20.8 J/C mol.   1 L*atm = 101.3 J

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