Calculate the equilibrium constant Kc at 256 K for the reaction SO2(g) + Cl2(g) ⇌ SO2Cl2(g) if Kp = 42 at this temperature. Assume the reaction involves gases and use the relation between Kp and Kc.

Which of the following statements are true and which are false? (a) The equilibrium constant can never be a negative number. (b) In reactions that we draw with a single-headed arrow, the equilibrium constant has a value that is very close to zero.

Consider the following equilibrium: 2 H₂(g) + S₂(g) ⇌ 2 H₂S(g) K_c = 1.08 × 10⁷ at 700°C (b) Does the equilibrium mixture contain mostly H₂ and S₂ or mostly H₂S?