Three pairs of reactions are listed below

CHEMISTRY · Subjective · A Level · Chemistry · Thermodynamics · Thermodynamics

Problem

Three pairs of reactions are listed below. For each pair, the first step is thermodynamically unfavorable and the second step is favorable. • Set A: ΔG1∘=+5 kJ\Delta G^\circ_1 = +5\,\text{kJ}, ΔG2∘=−18 kJ\Delta G^\circ_2 = -18\,\text{kJ} • Set B: ΔG1∘=+25 kJ\Delta G^\circ_1 = +25\,\text{kJ}, ΔG2∘=−20 kJ\Delta G^\circ_2 = -20\,\text{kJ} • Set C: ΔG1∘=−3 kJ\Delta G^\circ_1 = -3\,\text{kJ}, ΔG2∘=−4 kJ\Delta G^\circ_2 = -4\,\text{kJ} Rank the three sets from the most favorable overall process to the least favorable under standard conditions.

Related theory

Browse the problem library