At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be

• A. significantly less than 4.69 atm.
• B. nearly equal to 4.69 atm.
• C. significantly more than 4.69 atm.
• D. indeterminate due to lack of data