LIQUID SOLUTIONS: The vapour pressure of a certain liquid is given by : log P = 3.54595 - 313.7/T + 1.40655log T, Where P is the vapour pressure in mm. T is Kelvin Temperature(log is of base 10) Determine the molar latent heat of vaporization as a function of temperature. Calculate its value at 80K.

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Q. The vapour pressure of a certain liquid is given by the equation:

l o g_{10} P = 3.54595 - \frac{313.7}{T} + 1.40655 l o g_{10} T

where

P

is the vapour pressure in mm and T = Kelvin temperature. Determine the molar latent heat of vaporisation at

T = 80 K

Q. The vapour pressure of a certain liquid is given by the equation:

l o g_{10} P = 3.54595 + \frac{313.7}{T} + 1.40655 l o g_{10} T

, where, P is the vapour pressure in mm and T is temperature in K. The molar latent heat of vaporisation as a function of temperature and its value in cal at 80 K is :

Q. For a given liquid at a given temperature vapour pressure is given by:

l o g_{10} P (m m) = - \frac{400 (K)}{T} + 10

Vapour pressure of the liquid at

400 K

is:

Q. Vapour pressure and temperature relationship in shown as,

l o g P = \frac{- 500 (K)}{T} + 15

. Heat of vaporization will be:

The vapour pressure of a liquid at any temperature is defined as the pressure exerted by the vapour in equilibrium with the liquid at that temperature. T/F

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