- #1

kandelabr

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## Homework Statement

There are two insulated air containers, first with a volume V

_{1}and second with V

_{2}. In the first there is a pressure p

_{1}and in the second p

_{2}. The temperatures are the same in both, thus T. Then both containers are connected with a hose so that pressure equalizes, but no heat is transferred between them.

What are the final temperatures and final pressure?

2. Homework Equations

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## The Attempt at a Solution

If there was heat transfer between containers, the final temperature would be the same in both and even the same as the temperature T in the beginning and because of that I could calculate the final pressure using pV = mRT (R = gas constant for air), where I'd get mass for one container from specific volumes.

But this case with no heat transfer is a bit confusing. I can't get final pressure with the equation used above because I don't know the final temperatures. The book says the final pressure is the same as above, but I don't know why is it so.