Ten moles of water at 60 °C are mixed with an equal amount of water at 20 °C. Neglect any heat exchange with the surroundings and calculate the entropy change. The heat capacity of water may be taken...

Extracted text: Ten moles of water at 60 °C are mixed with an equal amount of water at 20 °C. Neglect any heat exchange with the surroundings and calculate the entropy change. The heat capacity of water may be taken to be 75.3 J K-1 mol-1 and independent of temperature.