Question

The vapour pressure of a liquid at any arbitrary temperature can be estimated approximately with the help of

Answer 1

Clausius Clapeyron Equation

This eq used to determine the vapour pressure of a liquid at any temperature

Answer 2

The vapor pressure of a liquid at any arbitrary temperature can be estimated using the Clausius-Clapeyron equation

• Vapor pressure is the pressure that is exerted on the walls of a sealed container when a substance in it evaporates                                              
• Clausius-Clapeyron equation:  ln(P/P') = (dH/R)(1/t1-1/t2) where, ΔH = Hv-Hl is the enthalpy of vaporization of the liquid where  Hv is the enthalpy of the gas state of a compound or element Hl is the enthalpy of the liquid state of a compound or element.
• R is the real gas constant,  and is the temperature at which the vapor pressure is known and where the vapor pressure is to be found, are the vapor pressure at the temperatures  t1 and 12.

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