Select the statement below that is true. If hexane is a liquid at room temperature and has a boiling point lower than ethanol, we can say that ethanol has the highest vapor pressure at room temperature.The vapor pressure of a liquid continues to increase as the temperature continually increases up tp 500 Kelvin. Increasing the temperature will case the vapor pressure of liquid ethanol to decrease.The vapor pressure of liquid ethanol is will decrease with decreasing temperature.The vapor pressure of a gaseous ethanol is directly proportional to ethanol's boiling point.