计算entropy matlabchange of the water

来源：蜘蛛抓取(WebSpider) 时间：2012-02-19 22:46 标签： entropy matlab
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一定量零度水和另一温度的冰混在一起的熵变化怎么算原题：Estimate the total change in entropy when2.5kg of water at 0℃ is frozen to ice at 0℃ by being in contact with 450kg of ice at -15℃.只要告诉原理什么就好,帮不帮我算随便啦~
能做到吗?冰水温度是在不断损失热量时才是0度,就是说0是个过程.,温度损耗是0时在混合的瞬间会出现两情况,不是水就是冰哈哈哈哈哈
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帮我看一下example 2的两个小问咋做...图片发不了 手打：Example2:(a) Calculate the entropy change which accompanies the melting of ice.The enthalpy of fusion of ice is 6.0kJ per mol.(b) Calculate the entropy change which accompanies the boiling of water.The enthalpy of vapourisation of water is 44.0 kJ per mol.
本题涉及冰的融化平衡,及水的汽化平衡,当平衡时,自由能变为0由吉布斯公式：△G = △H - T△S = 0 得：△H / T = △S所以：对（a) :T = 273K,△S = 6.0 * = 21.98 （J/mol K)对（b) :T= 373K,△S = 44.0 * = 117.96 （J/mol K)
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题目呢?没有题目怎么做
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