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A sample of 70.0 mmol Kr (g) expands reversibly and isothermally at 373 K from 5.25 cm3 to 6.29 cm3, and the internal energy of

A sample of 70.0 mmol Kr (g) expands reversibly and isothermally at 373 K from 5.25 cm3 to 6.29 cm3, and the internal energy of the sample is known to increase by 83.5 J. Use the virial equation of state up to the second coefficient B = -28.7 cm3/mol to calculate w, q, DeltaU and DeltaH.

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