At 180°C the heat of vaporization, AvapH of a certain liquid is 14.4 kJ mol'1 ....

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Mechanical Engineering

At 180°C the heat of vaporization, AvapH of a certain liquid is14.4 kJ mol'1 . The molar volumes of the liquid and the vapour atthe boiling point are 115 cm3 mol'1 and 14.5 dm3 mol' 1 ,respectively. Estimate the change in the boiling point of theliquid at 180°C per bar change in atmospheric pressure, dT/dp usingthe Clayperon equation. Briefly discuss the physical significanceof the sign of dT/dp .

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