Project ForgeProcess Calculations
Laws of Thermodynamics
GATE 2016
Medium
The partial molar enthalpy (kJ/mol) of species 1 in a binary mixture is h̄1=2−60x2²+100x1x2², where x1,x2 are mole fractions. The partial molar enthalpy of species 1 at infinite dilution, rounded to 1 decimal place, is
-58 kJ/mol(± 0.1 accepted)
Explanation
At infinite dilution of species 1, x1→0, x2→1: h̄1=2−60(1)²+100(0)(1)²=2−60=−58.
Source: GATE CH 2016 (2016)
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