For the reactions system #2H_2(g) + S_2(g) rightleftharpoons 2H_2S(g)#, a 1.00 liter vessel is found to contain 0.50 moles of #H_2# 0.020 moles of #S_2#, and 68,5 moles of #H_2S#. How do you calculate the numerical value of the Keq of this system?
You have the numerical values to calculate the equilibrium.
I don't believe this. Disulfur is an exceptionally high energy molecule, and I do not believe that these figures are authentic.