At a given temperature, a liquid can coexist with its gas at a single value of the pressure However, you can sense the presence of H 2 O(g) above the surface of a lake by the humidity, and it is still there if the barometric pressure rises or falls at constant temperature How is this possible ...

The statement that at a given temperature a liquid can coexist with its gas ...

At a given temperature, a liquid can coexist with its gas at a single value of the

Question:

At a given temperature, a liquid can coexist with its gas at a single value of the pressure. However, you can sense the presence of H₂O(g) above the surface of a lake by the humidity, and it is still there if the barometric pressure rises or falls at constant temperature. How is this possible?

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