At the initial state, the pressure and temperature of water vapor in the metal tank were 20 MPa, 520 °C. The water vapour has cooled to 400 °C. Using the compressibility chart, determine (a) The specific volume of the water vapor in m²/kg at the initial state. (b) The pressure in MPa at the final state.

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Steady State Model

The steady-state model typically states that the entire universe is always enlarging, although it balances a fixed average density and matter that is being constantly generated to make new galaxies, star forms at a similar rate that the previous ones get indistinguishable due to the growing range and velocity of recession.