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petar rezek

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- Homework Statement
- 3. a) Calculate the mass of argon that at 13°C, in a volume of 50 liters, presses the walls with a pressure of 5.10¹ Pa.

b) What is the internal energy of the gas at that temperature?

c) What is the average square speed of the molecules? A, (Ar) = 39,948

needed help with question C)

- Relevant Equations
- pv=nRT

U=NEk=3/2NkT=3/2nRT

In the images you can see what I did I need someone to check answers and show me how to do C part of question