A reaction is endothermic and has a positive entropy change.
Which statement is correct?
The reaction is always feasible
The reaction is feasible above a certain temperature
The reaction is feasible below a certain temperature
The reaction is never feasible
27 exam-style questions on AQA A Level Chemistry Thermodynamics (A-level only), covering Born–Haber cycles (A-level only) and Gibbs free-energy change, $\Delta G$ , and entropy change, $\Delta S$ (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.