A fixed amount of water vapor, initially at 20MPa, 520C, is cooled at constant volume until its temperature reaches 400C.
Determine
1. Specific volume of the water vapor at intial state using the compressibility chart.
2. Specific volume of the water vapor using at initial state using ideal gas equation.
3. Error involved in using ideal gas equation.
4. The pressure in MPa at the final state using the compressibility chart.