235-- In a $2$-liter container, $1$ mol of ammonia gas, $2$ mol of hydrogen gas, and $2$ mol of nitrogen gas are placed at a certain temperature. The equilibrium constant for this equilibrium is equal to $\mathbf{L^2 \cdot mol^{-2}}$ .............. and by lowering the temperature, the equilibrium constant .............. The reaction .............. shifts in the direction .............. $(\Delta H < 0)$: $$\mathrm{N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)}$$
\textbf{235--} In a $2$-liter container, $1$ mol of ammonia gas, $2$ mol of hydrogen gas, and $2$ mol of nitrogen gas are placed at a certain temperature. The equilibrium constant for this equilibrium is equal to $\mathbf{L^2 \cdot mol^{-2}}$ .............. and by lowering the temperature, the equilibrium constant .............. The reaction .............. shifts in the direction .............. $(\Delta H < 0)$:
$$\mathrm{N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)}$$
\begin{itemize}
\item[(1)] $0/25$, increases, forward
\item[(2)] $0/16$, remains constant, forward
\item[(3)] $0/25$, decreases, reverse
\item[(4)] $0/16$, remains constant, reverse
\end{itemize}
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