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ry0534
Lv 6
ry0534 asked in Science & MathematicsPhysics · 1 decade ago

velocity as function of pressure?

In a closed room, turn on the space heater, and Q and T will increase. Newton's law of cooling: Q=A dT, and Ideal gas law: dP=R dT/V. Combine dT, and dP=QR/VA. Now how do I get velocity in terms of dP? I'm sure this is a standard prob, but don't have any texts now.

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  • Anonymous
    1 decade ago
    Favorite Answer

    Q/A= dT

    dP=R dT/V = RQ/AV

    dP=(RQ/A)(1/V)

    P = (RQ/A)ln(V)

  • J S
    Lv 4
    1 decade ago

    V in that equation is Volume, duh

    if you want velocity of molecules flying around, due to changes in temperature, that's a whole nother story

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