the vapor pressure of liquid ethane thiol, , is 100 mm hg at 260 k. a sample of is placed in a closed, evacuated 567 ml container at a temperature of 260 k. it is found that all of the is in the vapor phase and that the pressure is 77.0 mm hg. if the volume of the container is reduced to 317 ml at constant temperature, which of the following statements are correct?