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# PS5 - 1 Chemistry 2090 Problem Set#5 Due Monday(in class...

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1 Chemistry 2090 Problem Set #5 Due Monday (in class), February 20, 2011 Chap 7 problems: 5, 20, 22, 34, 37, 42, 50, 56, 58, 72, 76 Ex4. Consider the system below to be a bomb reactor attached via a valve to a frictionless piston whose initial volume is 0.00 L. The bomb reactor contains 0.100 mol NO 2 (g) and 0.100 N 2 O (g) at 298 K in 4.89 L; this is state 1. P ex NO 2 + N 2 O bomb reactor piston: V 1 = 0 P ex 3/2 O 2 + 3/2 N 2 piston: V 2 = 0 closed closed P ex 3/2 O 2 + 3/2 N 2 piston: V 3 = ? open cat. a. What is the pressure, P 1 , of the bomb reactor (R = 0.08206 L . atm/K . mol)? b. If a pinhole leak occurred in the bomb reactor in state 1, calculate the rate of effusion of N 2 O (g) relative to NO 2 (g). c. The f (NO 2 ) is 33.2 KJ/mol and the f (N 2 O) = 82.1 KJ/mol. An insignificant amount of catalyst is added that generates the following reaction: NO 2 (g) + N 2 O (g) --------> 3/2 N 2 (g) + 3/2 O 2 (g) What is rxn in J? d.

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PS5 - 1 Chemistry 2090 Problem Set#5 Due Monday(in class...

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