During the chlorination of silicon, chlorine gas is reacted with solid silicon to form silicon tetrachloride. si(s) + 2cl2(g) + heat ↔ sicl4(g) at equilibrium, a 2l reaction vessel at 25°c contains 0.500 g of silicon, a 0.259 m concentration of chlorine and a 0.348 m concentration of silicon tetrachloride. calculate the equilibrium constant at these conditions. a) 0.672 b) 5.19 c) 1.34 d) 1.30