Gibbs Free Energy and Thermodynamic Favorability Practice Test

In a laboratory demonstration, carbon dioxide is converted to solid dry ice:

$$\text{CO}_2(g)\rightarrow \text{CO}_2(s)$$

For this phase change, $\Delta H<0$ and $\Delta S<0$. Which statement best describes when deposition is thermodynamically favorable (spontaneous) as written?

Consider the reaction

$$2\text{SO}_2(g) + \text{O}_2(g) \rightarrow 2\text{SO}_3(g)$$

At 298 K, the value of the Gibbs free energy change for the reaction is $\Delta G = -71 \text{kJ mol}^{-1}$ (as written). Based on this information, which statement best describes the thermodynamic favorability of the reaction at 298 K?