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Question about fluids

  1. Jan 8, 2012 #1
    Hi, I have a question about fluid temperature.

    I have a vague understanding that a fluid's temperature is its average kinetic energy. So, a hotter fluid has faster moving molecules on average.

    What I'm wondering is, if you force water out of a faucet harder to make the water come out faster, does this increase its temperature? If the water falls out faster, does that mean it has a higher kinetic energy, and therefore temperature, than if it came out slower?

  2. jcsd
  3. Jan 9, 2012 #2
    The fluid temperature is related to the magnitude of the thermal motion of the molecules in the fluid, not the collective motion of the fluid as a whole.
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