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The methane used to obtain H 2 for NH 3 manufacture is impure and usually contai

ID: 681501 • Letter: T

Question

The methane used to obtain H2 for NH3manufacture is impure and usually contains other hydrocarbons, suchas propane, C3H8. Imagine the reaction ofpropane occurring in two steps:

C3H8 (g) + 3 H2O (g) ? 3 CO (g) +7 H2 (g)
Kp = 8.175 x 1015 at 1200. K

CO (g) + H2O (g) ? CO2 (g) + H2(g)
Kp = 0.6944 at 1200. K


a. write the overall equation for the reaction of propane and steamto produce carbon dioxide and hydrogen. include states [(g), (l),or (s)]

b. calculate Kp for the overall process at 1200. K

c. when 1.00 volume of C3H8 and 4.00 volumesof H2O, each at 1200. K and 5.0 atm, are mixed in acontainer, what is the final pressure? [assume the totalvolume remains constant, that the reaction is essentially complete,and that the gases behave ideally]


please show me step by step how to solve this problem, includingthe solutions. i tried it myself and got it wrong 2 times (ihave 2 more tries). Thanks in advance :D



Explanation / Answer

^thanks so much, except for the last part (part c) can you explainfurther? I got to the same equation, but i believe they don't giveyou a T2 unless i'm missreading it?