Chemistry

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The boiling point of alcohol is 78.3 degrees Celcius at 760 mm atm pressure. Would the boiling point be higher or lower than 78.3 degree Celcius at hugher altirudes? Why?

  • Chemistry -

    The pressure is less, the b.p. is defined as that temperature at which the vapor pressure of the substance is the same as atmospheric pressure; therefore, the boiling point is less because the pressure is less. If you had wanted to figure this out yourself you could have put some numbers into the Clausius-Clapeyron equation and calculate the new b.p. at any pressure you chose.

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