Assume that benzene is insoluble in water. The normal boiling points of benzene and water are 80.1 and 100°C respectively. At a pressure of 1 atm, the boiling point of a mixture of benzene and water is

• 80.1°C.
• less than 80.1°C.
• 100°C.
• greater than 80.1°C but less than 100°C.