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【单选题】
第二类永动机违反热力学第（）定律。
A.
一
B.
二
C.
三
D.
四
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举报参考答案：
举一反三
【单选题】第二类永动机不可能制成，是因为 [ ]
A.
违背了能量守恒定律
B.
热量总是从高温物体传递到低温物体
C.
机械能不能全部转化为内能
D.
内能不能全部转化为机械能，同时不引起其他变化
【单选题】按照热力学上通常的规定，下列反应中ΔrHm和生成物的ΔfHm相等的是…( )
A.
(s)+CO2(g) →CaCO3
B.
6Li(s)+N2(g) →2Li3N(s)
C.
1/2H2(g)+1/2Br2(l) →HBr(g)
D.
2H2(g)+ O2(g)→2H2O(g)
【单选题】热力学中平衡态指______。
A.
系统宏观性质不随时间改变的状态
B.
没有外界作用时系统宏观性质不随时间改变的状态
C.
外界作用不变时，系统宏观性质不随时间改变的状态
D.
没有外界作用时的状态
【单选题】（3）下列描述属于热力学研究特点的是（ ）。
A.
研究对象是大数量分子的集合体的统计行为。
B.
既考虑变化前后的净结果，又考虑物质的微观结构和反应机理。
C.
不仅判断变化能否发生以及进行到什么程度，同时也考虑变化所需要的时间。
D.
不仅研究化学反应的可能性，也考虑其现实性。
【单选题】Many objects in daily use have clearly been influenced by science, but their form and function, their dimensions and appearance were determined by technologists, artisans, designers, inventors, and en...
A.
Mathematical thinking is essential to any design course.
B.
Nonverbal thinking has its advantage over other perceptive processes.
C.
Engineering design demands scientific thought.
D.
Artists play a primitive role in engineering design.
【单选题】PASSAGE TWO At the age of twelve years, the human body is at its most vigorous. It has yet to reach its full size and strength, and its owner his or her full intelce; but at this age the likeliho...
A.
Our first twelve years represent the peak of human development.
B.
People usually are unhappy when reminded of ageing.
C.
Normally only a few of us can live to the eighties and nineties.
D.
People are usually less likely to die at twelve years old.
相关题目：
【单选题】第二类永动机不可能制成，是因为 [ ]
A.
违背了能量守恒定律
B.
热量总是从高温物体传递到低温物体
C.
机械能不能全部转化为内能
D.
内能不能全部转化为机械能，同时不引起其他变化
【单选题】按照热力学上通常的规定，下列反应中ΔrHm和生成物的ΔfHm相等的是…( )
A.
(s)+CO2(g) →CaCO3
B.
6Li(s)+N2(g) →2Li3N(s)
C.
1/2H2(g)+1/2Br2(l) →HBr(g)
D.
2H2(g)+ O2(g)→2H2O(g)
【单选题】热力学中平衡态指______。
A.
系统宏观性质不随时间改变的状态
B.
没有外界作用时系统宏观性质不随时间改变的状态
C.
外界作用不变时，系统宏观性质不随时间改变的状态
D.
没有外界作用时的状态
【单选题】（3）下列描述属于热力学研究特点的是（ ）。
A.
研究对象是大数量分子的集合体的统计行为。
B.
既考虑变化前后的净结果，又考虑物质的微观结构和反应机理。
C.
不仅判断变化能否发生以及进行到什么程度，同时也考虑变化所需要的时间。
D.
不仅研究化学反应的可能性，也考虑其现实性。
【单选题】Many objects in daily use have clearly been influenced by science, but their form and function, their dimensions and appearance were determined by technologists, artisans, designers, inventors, and en...
A.
Mathematical thinking is essential to any design course.
B.
Nonverbal thinking has its advantage over other perceptive processes.
C.
Engineering design demands scientific thought.
D.
Artists play a primitive role in engineering design.
【单选题】PASSAGE TWO At the age of twelve years, the human body is at its most vigorous. It has yet to reach its full size and strength, and its owner his or her full intelce; but at this age the likeliho...
A.
Our first twelve years represent the peak of human development.
B.
People usually are unhappy when reminded of ageing.
C.
Normally only a few of us can live to the eighties and nineties.
D.
People are usually less likely to die at twelve years old.
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