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How do we define the surroundings with the universe as a system?

  1. Oct 25, 2015 #1
    if we apply the laws of thermodynamics to the universe as the system, and factoring dynamic boundary and dynamic system, how could we define the surroundings as a non-infinite, non zero factor?
  2. jcsd
  3. Oct 25, 2015 #2

    Simon Bridge

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    Do you know of any treatment that gives some factor for surroundings?
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