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谁可以告诉我,与水有关的知识?谢谢您! « Live in China 混在中国

作者:企业资讯策划团队 来源:rwfb 发布时间:2010-03-03 浏览:159

问:
谁能告诉我,与水有关的知识?谢谢您!

答:
水形成

的理解对水的来源仍然有很多不同的分歧在目前,约有32对各种理论的形成。若干重大理(China Dali)论概述了。一个在地球形成之前的初始物质的理论,原始星云,类似于0.5%的平均含水率水分子的存在,是现在的陨石坠落到地球后,地球的形成,使地球有水。

另一个地球是{wy}的水后,在原来的元素(Element)形成(氢,氧等)形成的理论。氢与氧的化学结合,在适当条件下。生成羟基(俄亥俄州)。羟基经过复杂的变化,形成水(H2O)。

荷兰天文学家奥特认为,地球的主要来源是我们在地球上地幔岩石圈。岩石圈的一半硅酸盐和水组成的硅材料。在一定温度和(如火山爆发)脱水,适当的情况下,这些岩石形成地球上的水。约翰肯尼迪和其他美国学者认为岩石是在xx混合熔融,含有硅酸盐75%,水25%。在地球形成初期,火山爆发频繁,从而加快了地球上的水形成。由于地球内部的热量,地球上的水越来越多。在这项研究中,我们的数据表明,在1000年近130万增加海洋表面。然而,海洋表面的快速增长,近几十年来,主要是由于全球变暖可能会导致。
水的性质

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同其他物质的水加热时量的增加,密度减小。在零摄氏度时999.87公斤密度/立方米纯净水,水在958.38千克/立方米,密度沸点密度下降了4%。
在正常大气压力
,水结冰,数量突然增加11%左右。当冰块融化突然降低音量。据科学家观察在一个封闭空间,水被冻结,并改变冰水,在高达2500大气压产生的压力量的增加。这种性质和行业特点是重要的。反复冻融岩石裂隙骨折时,正在逐步增加这是事实。水防冻埋塑料管不好,通常需要一定的深度(大于冻土层深度)。

冻结水降低温度与压力越来越大。大约每130个大气压力的增加,水的冻结温度降低1摄氏度。此功能使得海洋水,深层水不会冻结。

和压力成线性关系,水的沸点变化。沸腾的压力增长点增加。

热的水容量,除了氢比一个小除了比其他物质的热容量热容量铝较高。热调水比其它液体小。由于这一特性,水的{ctr}的身体,在冷冻缓慢,冰增厚级的经验,即使在水中长时间冰冻的表面,河水仍可能在的特色液体水深在水下生活具有重要意义。这种灌溉用水功能也是有意义的指导,如进行冬灌能提高地(Coty)温,以防止低温冻害冬季作物。

参考网站http:///waterresourse.htm

答:
啊?水的知识,因此,可以回答你?水是生物生存,就不可能如此简单。你可以检查资料来学习。
,但我告诉你,我们通常饮用纯净水,其实不是纯粹的,他有其他物质的,甚至有害的物质,但他的到来对人体的金额没有xx不仅仅是一个量的伤害。真正的纯蒸馏水,直至水蒸汽冷却水,它确实是H20。

Who can tell me that water-related knowledge? Thank you!

Question:
Who can tell me that water-related knowledge? Thank you!

Answer:
the formation of water

on the understanding of the origin of the water there are still a lot of differences, at present there are about 32 kinds of theories about the formation of water. Several major theories outlined here. A theory that the earth was formed prior to the initial substances, the existence of a H2O molecule of the original nebula, similar to the average moisture content of 0.5% is now meteorite fell to Earth after the formation of the Earth, so that the Earth has water.

Another theory that the earth was formed only after the formation of water in the original elements (hydrogen and oxygen). Hydrogen and oxygen in chemical combination, under appropriate conditions. Generates hydroxyl (OH). Hydroxy go through complex changes, to form water (H2O).

Dutch astronomer Ott that the main source of the Earth is our planet within the upper mantle lithosphere. Half of the lithosphere by the silicon material composed of silicate and water. These rocks at a certain temperature and suitable conditions (such as volcanic eruptions) dehydration, to form the Earth s water. John F. Kennedy and other American scholars believe that the rock is completely mixed in the melt, containing silicate 75%, water 25%. In the early formation of the Earth, volcanic eruptions frequently, thus speeding up the formation of the Earth s water. As the Earth s interior heat, the earth s water is increasing. In the study, our data indicate that the ocean surface during the year 1000 an increase of nearly 1.3m. However, rapid increase of ocean surface in recent decades mainly due to global warming may cause.
water, the nature of the

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water with other substances, when heated volume increase , the density decreases. Pure water at zero degrees Celsius when the density of 999.87 kilograms / cubic meter, the density of water at the boiling point of 958.38 kilograms / cubic meters, density decreased 4%.

in normal atmospheric pressure, water freezes, the volume suddenly increased around 11%. When the ice melts the volume suddenly reduced. According to scientists, observation, in a closed space, water is frozen, and change water as ice, the volume increase in the pressure generated by atmospheric pressure up to 2500. This feature of nature and industry are important. Repeated freeze-thaw rock fractures when the fracture is gradually increasing is this truth. Buried plastic pipe for water antifreeze bad, generally require a certain depth (greater than the frozen soil layer depth).

freezing temperature of water decreases with increasing pressure. About every 130 increase in atmospheric pressure, the water freezing temperature reduced by 1 degree Celsius. This feature makes the ocean water, deep water will not freeze.

and pressure the boiling point of water changes into a linear relationship. Boiling point increases with pressure increase.

heat capacity of water in addition to hydrogen and aluminum than the heat capacity of a small addition to the heat capacity than the other substances are higher. Heat transfer of water is smaller than the other liquids. Because of this characteristic, the natural body of water, when frozen slowly, thickening of the ice-class experience, even in its frozen surface of the water a long time, the river may still be in the depths of liquid water in the characteristics of the underwater life of great significance. This feature of water for irrigation is also to guide meaningful, such as conducting winter irrigation can increase ground temperature, to prevent winter crops by the low-temperature damage.

Reference Websites http:///waterresourse.htm

Answer:
ah? knowledge of the water so will be able to answer you? water is biological survival, it is impossible so simple. You can check the information to learn.
, but I tell you that we usually drink pure water, is in fact not pure, he has other substances, or even harmful substances, but the amount of his arrival on the human body there is no harm in more than just a volume. genuine pure distilled water until the water vapor cooling water, it really is H20.04-12-16

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