4.1.1 The basic features of a chemical equilibrium Most reactions are reversible,an example is en-LH,(g+1,(g一2H(g”×10°u×10 t/s mol.L1.s-1 0 0.01000.0100 0 7.60 0 2000 0.003970.003970.0121 1.20 2.04 4850 0.002130.002130.0157 0.345 3.43 85000.002130.002130.01570.3453.43