The dimerization equilibrium of nitrogen dioxide is represented by
N₂O₄(g) ⇌ 2 NO₂(g) ΔH° = +57 kJ mol⁻¹ (for the forward direction)
(a) Determination and justification of the sign of ΔS°
(b) Prediction and explanation of how K changes with temperature
(c) Prediction of the spontaneous reaction direction upon heating with justification
(d) Entropy-based proposal to shift equilibrium toward NO₂(g) at ≤350 K with justification