题目内容

有助于反应 3 O2＝2 O3ΔrHmΘ>0 进行的条件是

A. 高温低压
B. 高温高压
C. 低温高压
D. 低温低压

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298 K时，反应 BaCl2·H2O(s) ＝ BaCl2(s)＋ H2O(g)达平衡时 P H2O =330 Pa ，则反应的ΔrGmΘ 为

A. －14.3 kJ·mol－1
B. ＋14.3 kJ·mol－1
C. ＋139 kJ·mol－1
D. －141 kJ·mol－1

可使任何反应达到平衡时增加产率的措施是

A. 升高温度
B. 增大压力
C. 增加反应物浓度
D. 加入催化剂

500 K时，反应 SO2 (g) ＋ 0.5O2 (g) ＝SO3 (g) 的 KΘ ＝ 50 ，在相同温度下，反应2 SO3(g)＝2 SO2 (g) ＋ O2 (g) 的 KΘ为

A. 100
B. 2×10－2
C. 2500
D. 4×10－4

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