1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Kinetic theory and temperature in gases

  1. Jun 10, 2008 #1
    1. The problem statement, all variables and given/known data
    Temperature of a gas (in kelvin) is proportional to the average kinetic temperature of its particles.

    Question: The temperature of 55k (277C) to 1100k(827C). At 277C the mean kinetic energy of the gas is 1.14x10^20. What is it at 827C?

    2. Relevant equations
    kinetic energy= ½ x mass x (velocity)²

    3. The attempt at a solution

    55k to 1100k is x20. 1.14x10^20 x20=2.28x10^21.

    Just wanna check this is correct as I have an exam tormorrow.
    Last edited: Jun 10, 2008
  2. jcsd
  3. Jun 10, 2008 #2
    I'm fairly out of it because I'm pretty tired, but seems alright to me.
  4. Jun 10, 2008 #3
    Alright, cheers mate.
  5. Jun 10, 2008 #4


    User Avatar
    Science Advisor
    Homework Helper

    How is 55K = 277C??
  6. Jun 10, 2008 #5
    5k maybe? I just noticed that now...
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook