热力学第二定律习题A system absorbs 473 J of heat reversibly from a hot reservoir at 529 K and gives off 182.1 J of heat to a cold reservoir at 213 K.During this process,124.6 J of work is done by the system从热源中吸收473J热量可逆,
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![热力学第二定律习题A system absorbs 473 J of heat reversibly from a hot reservoir at 529 K and gives off 182.1 J of heat to a cold reservoir at 213 K.During this process,124.6 J of work is done by the system从热源中吸收473J热量可逆,](/uploads/image/z/6572550-30-0.jpg?t=%E7%83%AD%E5%8A%9B%E5%AD%A6%E7%AC%AC%E4%BA%8C%E5%AE%9A%E5%BE%8B%E4%B9%A0%E9%A2%98A+system+absorbs+473+J+of+heat+reversibly+from+a+hot+reservoir+at+529+K+and+gives+off+182.1+J+of+heat+to+a+cold+reservoir+at+213+K.During+this+process%2C124.6+J+of+work+is+done+by+the+system%E4%BB%8E%E7%83%AD%E6%BA%90%E4%B8%AD%E5%90%B8%E6%94%B6473J%E7%83%AD%E9%87%8F%E5%8F%AF%E9%80%86%2C)
热力学第二定律习题A system absorbs 473 J of heat reversibly from a hot reservoir at 529 K and gives off 182.1 J of heat to a cold reservoir at 213 K.During this process,124.6 J of work is done by the system从热源中吸收473J热量可逆,
热力学第二定律习题
A system absorbs 473 J of heat reversibly from a hot reservoir at 529 K and gives off 182.1 J of heat to a cold reservoir at 213 K.During this process,124.6 J of work is done by the system
从热源中吸收473J热量可逆,温度为529K,释放了182.1J的热量给冷物体,温度为213K,在这个过程中,做了124.6J的功.
求这个过程中1.内能变化J 2.熵的变化J/K 3.宇宙熵的变化
热力学第二定律习题A system absorbs 473 J of heat reversibly from a hot reservoir at 529 K and gives off 182.1 J of heat to a cold reservoir at 213 K.During this process,124.6 J of work is done by the system从热源中吸收473J热量可逆,
内能的变化是:
473-182.1-124.6
这里,系统熵的变化:529K的热源放热Q1=473,熵变是-473/529,213K的热源的熵变是正的,182.1/213,两者的和就是总熵变.
然后宇宙熵变是0.因为这是可逆过程.