Question

Enough of a volatile liquid is placed in a closed container to achieve a liquid-vapor equilibrium at a fixed temperature. Which of the following statements regarding this system is/are correctonce equilibrium is established?
1) Liquid molecules are no longer evaporating.
2) The number of vapor molecules remains essentially constant.
3) The partial pressure exerted by the vapor molecules is called the vapor pressure of the liquid.
A) 1 only
B) 2 only
C) 3 only
D) 1 and 2
E) 2 and 3

Answer

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