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//Chapter 3: Thermodynamic and Chemical Equilibrium
//Problem: 10
clc;
//Declaration of Constant
R = 8.314 //in J / K
//Declaration of Variables
V_O2 = 2.8 //in litres
V_H2 = 19.6 //in litres
// Solution
na = V_O2 / 22.4 //in mol
nb = V_H2 / 22.4 //in mol
Xa = na / (na + nb)
Xb = nb / (na + nb)
d_s = (- R) * (na * log(Xa) + nb * log(Xb))
mprintf("The increase in entropy on mixing is : %.3f J /K",d_s)
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