首页
登录
职称英语
The difference between a liquid and a gas is obvious【46】______the conditions
The difference between a liquid and a gas is obvious【46】______the conditions
游客
2024-08-07
9
管理
问题
The difference between a liquid and a gas is obvious【46】______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【47】______be kept in a closed container, as in the【48】______of a planet’ s atmosphere. The distinction was a prominent feature of early theories【49】______(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【50】 t______a quite different approach by emphasizing what liquids and gases have in common. They are both forms of matter【51】______have no permanent structure , and they both flow easily. They are fluids.
The【52】______(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【53】______, 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【54】______ which the densities become equal is called the critical point. Above the critical point the liquid and the gas can no longer be【55】______(distinguish) ; there is a single, undifferentiated fluid phase of uniform density. [br]
选项
答案
fundamental
解析
液体与气体之间的根本相似性在温度和压强有所提高时变得十分明显。
转载请注明原文地址:https://tihaiku.com/zcyy/3710065.html
相关试题推荐
Howmanyround-triphigh-speedtrainsbetweenFutianStationandGuangzhouSouth
Howmanyround-triphigh-speedtrainsbetweenFutianStationandGuangzhouSouth
Howmanyround-triphigh-speedtrainsbetweenFutianStationandGuangzhouSouth
WhatformsanaturalboundarybetweenMexicoandtheUnitedStates?A、TheRioGra
Parentsoftenfacedthe______betweendoingwhattheyfeltwasgoodforthedeve
Inahot,sunnyclimate,manacclimatizesbyeatingless,drinkingmoreliquids,
[img]2018m1x/ct_eyyjsbz2016j_eyyjsbreadd_0150_201712[/img]Itisobvioustha
Atthemomentsheis______thevolleyballmatchbetweentheJapaneseteamandthe
The______talksbetweenChinaandtheUnitedStateswerethebaseofthelaterag
Nottoomanydecadesagoitseemed"obvious"bothtothegeneralpublicand
随机试题
ThewordYogaitselfcomesfromanancientSanskritwordmeaning"union".Wh
[originaltext]M:Ican’tgetthiswindowopen.It’sreallystuck.W:Whydon’t
Idon’tseealotofTVcommercialsanymore,butthosesaccharineeHarmonya
Thispassageisfromapieceof______.[br]WhatdoweknowabouttheOperation
TheFrenchdivisionofMcDonald’shasrunadvertisementsthatincludedasur
火花效应使得冲击后接地电阻变小。()
( )是全美也是世界最大的股票电子交易市场,是世界上主要的股票市场中成长速度最
《商业银行公司治理指引》中强调,高级管理人员应当按照董事会要求,及时、准确、完整
下列选项中,关于劳动保护的说法。正确的是()。A.包括生活中的卫生保健和伤病医
下列关于增值税的征税范围说法正确的有()。A:销售或者进口的货物中的货物包括无形
最新回复
(
0
)