Question

Consider the following three reactions:

(i) Ti(s) + 2 Cl₂(g) TiCl₄(g)
(ii) C₂H₆(g) + 7 Cl₂(g) 2 CCl₄(g) + 6 HCl(g)
(iii) BaO(s) + CO₂(g) BaCO₃(s)

(a) For each of the reactions, use data in Appendix C to calculate ∆H°, ∆G°, K, and ∆S° at 25 °C. (b) Which of these reactions are spontaneous under standard conditions at 25 °C? (c) For each of the reactions, predict the manner in which the change in free energy varies with an increase in temperature.