The heat capacity of H2O(g) at constant pressure over a temperature range is from 100°C to 300 °C is given by Cp=30.54+1.03x10-2T (J/mol.K) Calculate ΔS, ΔH, ΔU when 200 g of gaseous water is heated from 120 to 250 °C in an atmosphere of Pressure. Assume ideal gas behavior.

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