Question
Its an old study set, and i have calculated question 1 and 2, but i cant seem to get my values right. So i would
Its an old study set, and i have calculated question 1 and 2, but i cant seem to get my values right. So i would really appreciate some help with the calculations for the following: Nitrogen pentoxide decomposes according to the reaction:
N2O5 -> NO2 + NO2 + 1/2 O2
The reaction is a first order reaction, and has a rate constant k.
T(K) |
273 |
298 |
308 |
318 |
328 |
338 |
k(s -1) |
7.87x10-7 |
3.46 x10-5 |
13.5 x10-5 |
49.8 x10-5 |
150 x10-5 |
487 x10-5 |
Nitrogen pentoxide is unstable and a dangerous oxidant. We wish to design a plug-flow reactor, where we optain 95% decompostion to NO2 and O2. The reactor need to operate at atmosferic pressure and 338 K. the feed is pure pentoxide, and FA0 = 1.0 mol/s.
question 1)
Make a stoichiometric table for the plug-flow reactor
question 2)
Find the volumetric gas flow (m3/s) in and out of the reactor, at the given temperature and pressure.
Determine the starting composition (mole fraction) from the reactor.
question 3)
How big of a reactor (m3) is nessesary to obtain the given degree of conversion (95%)?
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