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Volumetric expansion Kelvin required?

  1. Nov 17, 2011 #1
    Volumetric expansion Kelvin required???

    1. The problem statement, all variables and given/known data

    Suppose that the steel gas tank in your car is completely filled when the temperature is 11.5 °C. How many gallons will spill out of the 20.9- gallon tank when the temperature rises to 37.6 °C?

    2. Relevant equations

    βgasoline = 950 x10-6
    ΔV = β(V0)ΔT

    3. The attempt at a solution

    ok so this rele seemed like a plug and jug question to me and i just cant figure out where i went wrong. This is what I did, my only questions are where did i go wrong or maybe are the temperatures supposed to be in Kelvins or would Celsius work to?

    (950*10^-6)*(20.9)*(26.1)
    why isnt this right?

    Thanks yall
     
  2. jcsd
  3. Nov 17, 2011 #2

    gneill

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    Staff: Mentor

    Re: Volumetric expansion Kelvin required???

    Since the size of a degree K and a degree C are the same, ΔT will be the same regardless of scale used.

    Did you figure in the change in volume of the steel tank? Both are going to change (by different amounts) when the temperature changed.
     
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