Hello all dear
It happens at a constant temperature of 140(Tb)
The composition is similar to gasoline
Can you introduce an equation?
Thanks in advance
Ulrich Deiters
If the liquid is a pure, nonpolar compound, you can use Trouton's rule (Deltavap H / Tb = 88 J/(mol K). You evidently need the molar mass to obtain the enthalphy of vaporization in J/kg.
If the liquid is a mixture, you need to know the composition.
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Prem Baboo
To determine the enthalpy of vaporization, ΔHvap, you can use the Clausius-Clapeyron equation
Ln(P2/P1) =ΔHvap/R⋅(1/T1−1/T2),
where
P1, P2 - the vapor pressure at 273 K and 325 K, respectively; ΔHvap - the enthalpy of vaporization; T1, T2 - the two temperatures given to you.
.
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