首页
登录
职称英语
The difference between a liquid and a gas is obvious【C1】______the conditions
The difference between a liquid and a gas is obvious【C1】______the conditions
游客
2024-08-06
5
管理
问题
The difference between a liquid and a gas is obvious【C1】______the conditions of temperature and pressure commonly found at the surface of the Earth. A liquid can be kept in an open container and fills it to the level of a free surface. A gas forms no free surface but tends to diffuse throughout the space available: it must【C2】______be kept in a closed container, as in the 【C3】______of a planet’s atmosphere. The distinction was a prominent feature of early theories 【C4】______(describe)the phases of matter. In the nineteenth century, for example, one theory maintained that a liquid could be "dissolved" in a vapor without losing its identity, and another theory held that the two phases are made up of different kinds of molecules(分子). The theories now prevailing【C5】t______a quite different approach by emphasizing what liquids and gases have in common. They are both forms of matter【C6】______have no permanent structure, and they both flow easily. They are fluids.
The【C7】______(fundament)similarity of liquids and gases becomes clearly apparent when the temperature and pressure are raised somewhat. Suppose a closed container partially filled with a liquid is heated. The liquid expands, or in other【C8】______, becomes less dense: some of it evaporates. In contrast, the vapor above the liquid surface becomes dense as the evaporated molecules are added to it. The combination of temperature and pressure【C9】______ which the densities become equal is called the critical point. Above the critical point the liquid and the gas can no longer be【C10】______(distinguish): there is a single, undifferentiated fluid phase of uniform density. [br] 【C10】
选项
答案
distinguished
解析
句意:在临界点之上时,气体和液体就很难再区分开来。
转载请注明原文地址:https://tihaiku.com/zcyy/3708140.html
相关试题推荐
实际上,孩子们与父母之间的分歧并不像我们想象的那样大。(expect)Infact.thegapbetweenchildrenandtheir
Itisinterestingtoreflectforamomentuponthedifferencesintheareas
Itisinterestingtoreflectforamomentuponthedifferencesintheareas
Itisinterestingtoreflectforamomentuponthedifferencesintheareas
Itisinterestingtoreflectforamomentuponthedifferencesintheareas
Renaissancewasthetransitionalperiodbetweenthe______and______.A、Primitiv
Collisionbetweenanaircraftandoneormorebirdsistermedabird-strike.
Collisionbetweenanaircraftandoneormorebirdsistermedabird-strike.
Effectivereadingrequiresnotonly"readingbetweenthelines,"butalso"w
Effectivereadingrequiresnotonly"readingbetweenthelines,"butalso"w
随机试题
Eachforitsownreason,thestudyofresidentialmobilityhasbeenaconcer
A.14504.7kwh/d B.19339.5kwh/d C.9669.8
婴幼儿时期最常见的肺炎是A.间质性肺炎 B.支气管肺炎 C.大叶性肺炎 D
下述药物副作用中,属于严重、危险的不良反应的是A:便秘 B:体重增加 C:血
关于抗疟药下列说法正确的是A.伯氨喹可以作为抗疟药的病因性预防药 B.乙胺嘧啶
污染大气中由汽车排放的CO约有()。A.80% B.60% C.50%
下列属于ABC类干粉灭火剂的有()。A.以氯化钾为基料的超级钾盐干粉灭火剂 B
基础心理学是研究()。 (A)正常成人心理现象的心理学基础学科 (B
预应力筋采用镦头锚固时,高强钢丝宜采用()。A.液压冷镦 B.冷冲镦粗 C
生产安全事故发生后,生产经营单位主要负责人谎报或者瞒报事故的,应当受到的处罚是(
最新回复
(
0
)