Two moles of the monatomic gas argon expand isothermally at 298 K, from an initial volume of Vi = 0.025 m3 to a final volume of Vf = 0.050 m3. Assuming that argon behaves as an ideal gas, find (a) the work done by the gas, (b) the change in the internal energy of the gas, and (c) the heat supplied to the gas.

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