Define the highest vapor pressure at room temperature

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You are given the following boiling point data: Which of the liquids would you expect to have the highest vapor pressure at room temperature?

Water, H2O 100oC

Methanol, CH3OH 64.96oC

Ethanol, CH3CH2OH 78.5oC

Diethyl ether, CH3OH2-O-CH2CH3 34.5oC

Ethylene glycol, HO-CH2-CH2-OH 198oC

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