Criteria for Equilibrium — Prelims Questions

Which of the following conditions correctly represents a system at equilibrium at constant temperature and pressure?

For an isolated system, which of the following is the correct criterion for equilibrium?

For a phase transition, such as the melting of ice, at its normal melting point ($0^circ\text{C}$, $1,\text{atm}$), what is the value of $Delta G$?

A reaction has $Delta H = +50,\text{kJ/mol}$ and $Delta S = +150,\text{J/mol}cdot\text{K}$. At what temperature will this reaction be at equilibrium?

Which of the following statements is TRUE regarding a system at dynamic equilibrium?

If a reaction has a very large positive $Delta G^circ$ at a given temperature, what can be inferred about its equilibrium constant (K) at that temperature?