ch19-p017 - 17. When the valve is closed the number of...

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17. When the valve is closed the number of moles of the gas in container A is n A = p A V A / RT A and that in container B is n B = 4 p B V A / RT B . The total number of moles in both containers is then 4 const. AA B AB Vp p nnn RT T §· =+= + = ¨¸ ©¹ After the valve is opened the pressure in container A is p A = Rn A T A / V A and that in container B is p B = Rn B T B /4 V A . Equating p A and p B , we obtain Rn A T A / V A = Rn B T B /4 V A , or n B = (4 T A / T B ) n A . Thus, 44 1. A B A A B BA B TV p p nn n n n n
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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