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Homework Help: Finding the root mean squared

  1. Nov 21, 2013 #1
    1. The problem statement, all variables and given/known data

    An ideal gas has rms speed vrms at a temperature of 288K .

    At what temperature is the rms speed tripled?

    2. Relevant equations


    3. The attempt at a solution

    I'm kind of stumped on this one. Other ones i've done are pretty simple to figure out, but the temperature is what is kicking me
  2. jcsd
  3. Nov 21, 2013 #2


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    What is the mathematical relationship between rms speed and temperature for an ideal gas? That would be a relevant equation here.
  4. Nov 22, 2013 #3
    Ok so the ideal gas equation is PV=NkbT

    Since i see pressure there i divided the volume so i can get P=(NkbT)/v

    I set the 2 equations equal to each other and simplified to get T=(mv2)/Kb

    if that makes any sense.
  5. Nov 22, 2013 #4


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