#8.85

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csebastiani_1B
Posts: 15
Joined: Wed Sep 21, 2016 2:59 pm

#8.85

Postby csebastiani_1B » Wed Jan 18, 2017 9:22 pm

N2 + O2 --> 2NO dH° 180.6 kJ
(b) How much heat is absorbed in the oxidation of 5.45 L
of nitrogen measured at 1.00 atm and 273 K? (c) When the oxidation of N2 to NO was completed in a bomb calorimeter, the heat absorbed was measured as 492 J. What mass of nitrogen gas was oxidized?

Can anybody help me out with this question?

Rachel_Harland_3I
Posts: 19
Joined: Fri Jul 22, 2016 3:00 am

Re: #8.85

Postby Rachel_Harland_3I » Thu Jan 19, 2017 7:40 pm

b) PV=nRT , V=5.45L P=1atm, R=0.0821, T=273K.
Solve for "n" and you get 0.243 moles.
multiply this by 180.6KJ/1moleN2 to find out the total KJ for 0.243 moles
(43.9KJ)


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