Chemical Equilibrium - 2nd Formulation   |POLVER05_1
f(x) = (b-(((c+2*x)^2*(a+b+c-2*x)^2)/(kp*P^2*(a-x)))^(1/3))/3-x   #
a = 0.5   #
b = 0.8   #
c = 0.3   #
kp = 604500   #
P = 0.00243   #
x(min)=0.001, x(max)=0.7