Basic Mechanical Engineering  (3110006)

Three kg of steam at a pressure of $10 \mathrm{bar}$ exists in the following conditions. Calculate its enthalpy and internal energy in each of the cases.

Write the uses of Steam Tables.

1.5kg of steam at a pressure of 10bar and temperature of 250°C is expanded until the pressure becomes 2.8bar. The dryness fraction of steam is then 0.9. Calculate change in Internal Energy.