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?