1kg gaseous water
100°C
1 bar
One kilogram of liquid water at 100°C is vaporized to steam at 100°C in a piston. (Equilibrium can be assumed). What procedure is needed to determine how much heat would be required and how much work is done in this process? If Q does not equal W, what accounts for the difference?
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Again, the piston rises, lowering the pressure. Now the H2O is entirely vapor. There should be a large change in the volume since the density of gas is approximately 1000 times less than the density of the liquid. |
Lowers
| Rises ?Proceed to Work
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