【简答题】反应N 2 (g)+3H 2 (g)====2NH 3 (g)在298K时的 =-92.88H/mol,求此反应在398K时的 。已知: C p,m (N 2 ,g)=(26.98+5.912×10 -3 T-3.376×10 -7 T 2 )J/(K·mol) C p,m (H 2 ,g)=(29.07-0.837×10 -3 T+20.12×10 -7 T 2 )J/(K·mol) C p,m...
【简答题】transfer exhibit magnificent indignant extol opponent inconceivable transcendambiguity contemplate layout capable criticism aspire intellectual complexityfaculty scope interpret creativityThere is als...
【简答题】Working-class families in the United States are usually nuclear, and many studies indicate that working-class couples marry for love, not for money. Upper-class couples may marry for love, but their c...
【单选题】在 298K时反应N 2 (g) + 3H 2 (g) ≒ 2NH 3 (g)正反应是放热反应。在密闭容器中该反应达到平衡时,若加入稀有气体,估计会出现( )
【简答题】Q63. We ensure that there is an environment in which differences are respected and different solutions and
ideas are welcome. (5.0分)A. 我们保证有这样的氛围:差异得到尊重,不同的解决方案和想法受到欢迎。 B. 我们正在营造的环境是:差异尽管存在,欢迎提出解决问题的方...
【单选题】Though it is mere 1 to 3 percent of the population, the upper class possesses at least 25 percent of the nation's wealth. This class has two segments: upper-upper and lower-upper. Basically, the upper...
A.
the upper-upper class is of aristocratic origin
B.
the 'old rich' enjoy higher prestige than the 'new rich'
C.
the 'old rich' isolate themselves and lead a lonely life
D.
the upper class owns at least a quarter of the country's wealth
【单选题】在298K时反应N 2 (g)+3H 2 (g)=2NH 3 (g), <0,则标准状态下该反应:
【简答题】Though the number of the upper class is a mere one third of the population, they make up at least 25 percent of the nation’s wealth. This class has two parts: upper-upper and lower-upper. 1 , the uppe...
【单选题】班级活动的功能主要有()
A.
满足交往需求的功能,学习发展功能,个性发展功能,班集体建设功能.班主任专业提升功能
B.
满足交往需求的功能,增进相互了解功能,个性发展功能,班集体建设功能.班主任提升功能
C.
满足交往需求的功能.学习发展功能.个性发展功能.班集体建设功能.教育评估
D.
足交拄需求的功能.学习发展功能.个性发展功能.班集体建设功能.班级评比
【单选题】________ wrote about the society in the South by inventing families: the old decaying upper class; the rising, ambitious, unscrupulous class of the "poor white"; and the Negroes who labored for both o...