When CO2(g)CO2(g) is put in a sealed container at 730 KK and a pressure of 10.0 atm and is heated to 1420 KK , the pressure rises to 24.1 atm. Some of the CO2CO2 decomposes to COCO and O2O2.
Calculate the mole percent of CO2 that decomposes.
Express your answer using two significant figures.
Ideal Gas Law:
R = 0.08206 L×atm/mol×K
(which is the total amount of moles of the gases)
Let's suppose, V = 1L, so:
For the decomposition reaction, we can do a reaction table:
2CO2 → 2CO + O2
0.1669____ 0___ 0
-2x______ +2x__ +x
So, mol of CO2 decomposes, the percent is:
Answer: 47.81 %