hce_kmu
114年
物理及化學
第 74 題
Consider the ammonia synthesis reaction: N$_{2(g)}$ + 3H$_{2(g)}$ $\rightarrow$ 2NH$_{3(g)}$
where $\Delta$G$^o$ = -31.3 kJ/mol of N$_2$ consumed at 25$^\circ$C
Which of the following statements correctly predicts the direction of the reaction when P$_{\text{N}_2}$ = P$_{\text{H}_2}$ = P$_{\text{NH}_3}$ = 1.00 atm?
where $\Delta$G$^o$ = -31.3 kJ/mol of N$_2$ consumed at 25$^\circ$C
Which of the following statements correctly predicts the direction of the reaction when P$_{\text{N}_2}$ = P$_{\text{H}_2}$ = P$_{\text{NH}_3}$ = 1.00 atm?
- A the system moves to the right
- B the system moves to the left
- C the system is already at equilibrium
- D the system moves to the left if the temperature increases
- E not enough information
思路引導 VIP
請思考一下，當反應系統中所有氣體的分壓都恰好等於 $1 \text{ atm}$ 時，在熱力學公式中計算出的反應商 $Q$ 會是多少？這個數值對計算當時的自由能變化 $\Delta G$ 有什麼特殊的簡化效果嗎？