【简答题】(8分)在一定体积的密闭容器中,进行如下化学反应: CO 2 (g)+H 2 (g) CO(g)+H 2 O(g)。其化学平衡常数 K 和温度 T 的关系如下表,回答下列问题: T ℃ 700 800 830 1000 1200 K 0.6 0.9 1.0 1.7 2.6 (1)该反应正向为Δ H 0;若该反应符合如图所示的关系,则在图中,Y轴是指 。 (答出一种即可) (2)能判断该反应达到化学...
【单选题】We sincerely trust, therefore, that the credit______ you by the time you read this letter.
D.
will have safely reached
【单选题】进入21世纪以来,世界格局正处于一个加快演变的历史进程中,( )的全球治理体系出现变革迹象。
【单选题】Section B Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You shoul...
A.
developing genetically modified or nutritionally improved crops
B.
incorporating pest-resistant or virus-resistant genes into seeds of crops
C.
improving the ability of seeds to resist water shortages in certain regions
D.
identifying genes that helps neutralize aluminum toxicity in crops
【简答题】在一定体积的密闭容器中,进行如下化学反应:CO 2 (g)+H 2 (g) CO(g)+H 2 O(g)。其化学平衡常数K和温度T的关系如下表: T℃ 700 800 830 1000 1200 K 0.6 0.9 1.0 1.7 2.6 回答下列问题: (1)该反应正向为ΔH 0;若该反应符合下图所示的关系,则在图中,Y轴是指 。 (2)能判断该反应达到化学平衡状态的依据是 (多选扣分)。 a....