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  • 23-02-2017
  • Chemistry
Answered

Suppose you had a mixture of 1 moles of methanol and 1 mole of ethanol at a particular temperature. The vapor pressure of pure methanol at this temperature is 81 kPa, and the vapor pressure of pure ethanol is 45 kPa.  Using Raoult's Law calculate the total vapor pressure for this solution.

Verified Answer :

scme1702
scme1702 scme1702
  • 01-03-2017

The total pressure is given by:
P = ∑xiPi
P = 1/2 x 81 + 1/2 x 45
P = 63 kPa

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