The Normal Boiling Point of Ether Is 307

question 51

Multiple Choice

The normal boiling point of ether is 307.8 K. Calculate the temperature at which its vapor pressure is exactly half of that at its normal boiling point. The heat of vaporization for ether is 26.69 kJ/mol.

• A)305 K
• B)302 K
• C)295 K
• D)289 K
• E)281 K

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