State Functions: Interactive Simulation

This simulation will run on your browser. Try to predict the behavior when a parameter changes before using a slider to change that parameter. A screencast below explains how to use this simulation.

Simulation: Evaporative Cooling of Water

Try to answer these questions before determining the answers with the simulation. We suggest that you write down the reasons for your answers.

  1. A well-insulated tank with a valve on top contains 10 kg of liquid water at 0°C. A vacuum pump removes 1 kg of water vapor. The heat of vaporization at 0°C is 2,500 kJ/kg and the heat of fusion is 330 kJ/kg. What is the temperature of the remaining 9 kg? What phase or phases are the remaining 9 kg?