A Liquid Has a Normal Boiling Point of 78 °C

question 15

Multiple Choice

A liquid has a normal boiling point of 78 °C and its vapor pressure is 400 mmHg at 50 °C.To compute the molar heat of vaporization,one needs:

• A)the mole weight
• B)the vapor pressure at another temperature
• C)the specific heat
• D)molarity
• E)all information has been provided

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