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Ideal Gas Problem

  1. Sep 12, 2012 #1
    1. The problem statement, all variables and given/known data
    An ideal gas is enclosed in a gas syringe. The pressure on the gas is now increased but the temperature of the gas is kept constant. The average kinetic energy of the gas molecules will...... A) increase B) remain constant C) decrease D) double


    2. Relevant equations



    3. The attempt at a solution
    I think that it will increase because the pressure increases and so the molecules will move around more. Am I correct ?
     
  2. jcsd
  3. Sep 12, 2012 #2
    How does the average kinetic energy depends on temperature?
    Write down the formula for average kinetic energy.
     
  4. Sep 15, 2012 #3
    ek = 1/2 mv^2 which is directly proportional to temperature,
    Am I correct?
     
  5. Sep 15, 2012 #4
    Yep, so what's the answer to your original question then?
     
  6. Sep 16, 2012 #5
    So the answer is, B) remain constant.
    Thanks for your help!
     
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