Average Kinetic Energy
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Average Kinetic Energy
I was working through problem 4.19 in the textbook, and the question asked to calculate the kinetic energy of Kr. The solution manual mentions that average kinetic energy = 3/2RT. Where does this equation come from? I see that it's equal to the internal energy of an ideal gas, so do we assume that average kinetic energy is equal to internal energy?
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Re: Average Kinetic Energy
hi!
I do not think this is an equation we need to concern ourselves with as Dr. Lavelle didn't mention this in lecture. It would probably be helpful to keep in the back of our minds, though.
hope this helps!
I do not think this is an equation we need to concern ourselves with as Dr. Lavelle didn't mention this in lecture. It would probably be helpful to keep in the back of our minds, though.
hope this helps!
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Re: Average Kinetic Energy
What you indicated is right; it is the same equation used to find deltaU (with the exception that is 3/2 nRT for internal energy). I doubt that we would have to apply the formula for kinetic energy in any problems or examples since it was not covered or explained in lecture, but it is good to just keep in the back of your head. Hope this helps!
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Re: Average Kinetic Energy
Since he didn't talk about it I wouldn't expect anything complicated about it. It might be something just like this textbook problem since it is on the equation sheet I think.
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