最近30从www.hoelymoley.com 2023 - 07 - 09 - t02:05:59z //www.hoelymoley.com/feeds/question/20875 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/20875 1 MP1 //www.hoelymoley.com/users/21841 2021 - 02年- 23 - t22:59:12z 2021 - 02 - 24 t23:27:30z

< p >相变在不同压力和温度的水告诉我们,没有大气压力200开尔文(零下73摄氏度)就足以把冰变成蒸汽直接< / p > < p >不会表明太阳日晒地球到太阳的距离加热潜力足以启动假设冰行星国家公园的气氛?即使平均白天/黑夜吗?< / p > < p > < a href = " https://i.stack.imgur.com/91JS8.gif " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/91JS8.gif " alt = "在这里输入图像描述" / > < / > < / p >

//www.hoelymoley.com/questions/20875/is-it-possible-to-kickstart-an-hypothetical-frozen-earth-with-0-6-ice-albedo-to/20882 # 20882 2 Joscha Fregin //www.hoelymoley.com/users/18833 2021 - 02 - 24 t23:27:30z 2021 - 02 - 24 t23:27:30z

答案是< p > <强> < /强>。< / p > < p > < >强解释< /强>:< / p > < p >没有大气相当于所有分子能够逃避空间(这发生在行星引力较低)。也因此< span class = " math-container " > H_2O分子< / span >美元会逃避,我想这许多分子已经逃避在地球的冻结状态由于< a href = " https://en.wikipedia.org/wiki/Sublimation_ (phase_transition)”rel = " nofollow noreferrer " >升华< / >。所以这可能是这个答案。< / p > < p >但假设,即使它是不现实的,氛围可能形式。大气的权力收到太阳在<跨类= " math-container " > $ S_0 = 1368 \ \压裂{\文本{W}}{\文本{m} ^ 2} $ < / span >(<跨类= " math-container " > S_0 < / span >美元被太阳常数)。假设地球是一个黑体我们可以等同于权力收到了来自太阳的辐射和权力假设地球(参见< a href = " https://en.wikipedia.org/wiki/Stefan%E2%80%93Boltzmann_law " rel = " nofollow noreferrer " > < / >)斯蒂芬玻尔兹曼法。< / p > < p > <跨类= " math-container " > S_0美元(1 -α)\ \πr ^ 2 =σ\ \ T ^ 4 4πr ^ 2 $ < / span > < / p > < p > <跨类= " math-container " > \α= 0.6 < / span >美元反照率,< span class = " math-container " > \σ= 5.67美元\ cdot 10 ^ {8} $ < / span >是< a href = " https://en.wikipedia.org/wiki/Stefan%E2%80%93Boltzmann_constant " rel = " nofollow noreferrer " >斯蒂芬玻尔兹曼常数< / >,< span class = " math-container " > \π= 3.1415美元< / span >, < span class = " math-container " > T < / span >美元是地球表面温度和<跨类= " math-container " > $ r = 6371 \ \文字{公里}$ < / span >是地球半径。简化和重新排列收益率< / p > < p > <跨类= " math-container " > $ T = \离开(\压裂{S_0(1 -α)\}{4σ\}\右)^{\压裂{1}{4}}\大约222 \ \ {K} = -51.15°\文本{C} $ < / span >。< / p > < p >看你提供的相图,我们可以看到,在<跨类= " math-container " > 222美元\ \ {K} $ < / span >文本和低压水自然是气体。假设一种气氛的确可能增加(一些神奇的原因有人有的)答案是<强>是的< /强>氛围可以形式。< / p >

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