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A piston-cylinder device containing argon gas as the system undergoes an isothermal process from 200 kPa and 100C to 50 kPa. During the process,

A piston-cylinder device containing argon gas as the system undergoes an isothermal process from 200 kPa and 100C to 50 kPa. During the process, 1500 kJ of heat is transferred to the system. Calculate the amount of boundary work produced and the mass of this system.

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