Question

The vapor pressure of liquid carbon disulfide, CS2, is 40.0 mm Hg at 251 K. A sample of CS2 is placed in a closed, evacuated container of constant volume at a temperature of 368 K. It is found that all of the CS2 is in the vapor phase and that the pressure is 54.0 mm Hg. If the temperature in the container is reduced to 251 K, which of the following statements are correct? Choose all that apply.

No condensation will occur.

Liquid carbon disulfide will be present.

Some of the vapor initially present will condense.

The pressure in the container will be 40.0 mm Hg.

Only carbon disulfide vapor will be present.