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Why temparature only depends on internal energy, not on porv (pressure or volume)

  1. Oct 24, 2015 #1
    Why temparature is only dependent on internal energy of something, say an ideal gas.
  2. jcsd
  3. Oct 24, 2015 #2


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    Which other dependency would you expect?
    What is "porv"? Pressure or volume? It can depend on those, depending on the setup.
  4. Oct 24, 2015 #3
    I think he means pressure or volume. Like mfb said, it can depend on these variables, depending on the system. Usually, for a gas, any two variables out of (T, p, V) are considered as the independent variables, and other quantities, such as internal energy, or compressibility, etc., are expressed in terms of these independent variables. The internal energy depends only on temperature, for an ideal gas. This is not true for a real gas.