Question

Which of the substances below would have the lowest boiling point?

propane, with a vapor A.pressure of 998 kPa at 293K

B.water, with a vapor pressure of 2.3 kPa at 293K

C.ethanol, with a vapor pressure of 5.83 kPa at 293 K

D.butane, with a vapor pressure of 220 kPa at 293 K

Answer 1

Answer: The answer is A.

Explanation: The higher the kPa, the lower the boiling point