英国利物浦作业代写 水反应

2020-04-01 01:17

水转化为双原子的氢和氧后发生了一系列的反应。这个氢逸出离开电离氧与电子重新结合成单个原子，轻到足以达到逃逸速度。如果以火星的生命周期来推算水的损失，相当于火星表面覆盖了2.5米的水。科学家和科幻迷们都提出了这样一个问题:是否有可能把火星改造成一个更适合居住的星球。要实现这一目标，需要几十年的大规模工程项目。许多科学家已经假设了这个问题，并确定了最可行的路径。人们一致认为，如果气温升高到一定程度，极地冰盖就会融化。融化的冰盖会增加火星表面的密度和压力。随着更厚的温室气体大气层，地球将继续变暖到一定程度，有弹性的植物有可能生长。提出的使火星变暖的方法包括轨道反射镜、移动氨小行星、利用低反照率材料和开发人造磁屏蔽。美国国家航空航天局艾姆斯研究中心的罗伯特·祖布林和克里斯托弗·麦凯认为，可以在轨道上安装一面薄薄的聚脂薄膜镜，聚焦于火星的两极。一个半径为125公里的镜子足以使南极的温度升高5度。人们相信，这个数量级的温度升高足以融化大部分极地冰帽。通过融化冰盖释放出的二氧化碳足以造成失控的温室效应。这样大小的镜子将有20万吨的质量，这是不可能从地球发送的。同样的研究人员也建议从太阳系外的小行星引入氨。一颗直径2.6公里的小行星的撞击将释放出足够的能量来融化1万亿吨的水。氨会作为一种强大的温室气体使温度升高3度。这种方法需要几十年的持续影响才能使气候温和。这种方法可以用来启动这一过程，但一旦有人类前往火星的任务，就必须停止，因为每一次撞击都是极具破坏性的。这种方法的另一个缺点是缺乏关于太阳系氨天体的数据。
英国利物浦作业代写 水反应
A series of reactions occur with the result of water being converted in to diatomic Hydrogen and Oxygen. This Hydrogen escapes leaving ionized Oxygen to recombine with electrons into single atoms, light enough to reach escape velocity. If the water loss is extrapolated over the life span of the planet it would correspond to 2.5m of water covering mars’ surface. Both scientists and science fiction fans have posed the question whether it is possible to terraform Mars into a more habitable planet. To achieve this an engineering project of massive scale would be required over decades. Numerous scientists have hypothesized this question and determined the most feasible routes to do so. The consensus is if the atmosphere could be warmed by a large enough temperature the polar ice caps would melt. Melting the icecaps would increase the density and pressure on the surface of mars. With a thicker atmosphere of greenhouse gasses the planet would continue to warm to a point it may be possible for resilient plant life to grow. Proposed methods of warming mars include orbiting mirrors, moving ammonia asteroids, utilizing low albedo material, and developing an artificial magnetic shield.Dr. Robert Zubrin and Christopher Mckay of NASA’s Ames Research center theorize that a thin mylar mirror could be set in orbit focused on mars’ poles. A mirror with a radius of 125 km would be sufficient to raise the temperature of the south pole by 5 degrees. It is believed that a temperature increase of this order would be enough to melt the majority of the polar ice caps. By melting the ice caps enough carbon dioxide would be released to produce a runaway greenhouse effect. A mirror of this size would have a mass of 200,000 tonne which is not feasible to send from earth. The same researchers proposed importing ammonia asteroids from the outer solar system. The impact of a 2.6 km asteroid would release enough energy to melt 1 trillion tonnes of water. The ammonia would act as a powerful greenhouse gas raising the temperature by 3 degrees. This method would require sustained impacts over decades to make the climate temperate. This method could be utilized to start the process but would have to be stopped once there are human missions to mars as each impact would be very destructive. Another drawback of this method is the lack of data on solar system ammonia objects.

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