400 
simultaneously with mass action expressions of the form 
pie vj 
Ke rons * (2,15) 
for equilibrium of the chemical reaction 
(6) 
z y. Y wey ) (2.16) 
where yt) denotes the formula of the i-th product constituent and K is 
the value of the mass action constant. We discuss here the evaluation of 
K for the pressures characteristic of the explosion process. A discussion 
of techniques for the calculation of the equilibrium composition of systems 
of many constituents has been published elsewhere. 13/ 
The specific work content ACP 37) is given by standard thermo- 
dynamics as 
t?) A pa 
Riga eal RT |» toy F t2nglogn, -n| (2.17) 
rt fap 
0 
The chemical potential a is defined as 
ay = (= i ; (2.18) 
| on; 1A ni n- 
Employing the equation of state 2.8, we obtain 
Bi > =H; + RT flog n; + toy Bs Le -}) 
+ (nk; / Enche)xe” *_ log (1tKe wi 
(2.19) 
137 S. R. Brinkley, Jr., J. Chem. Phys., 15, 107 (197). ~~ ~SCS 
