An #8 L# container holds #6 # mol and #5 # mol of gasses A and B, respectively. Every two molecules of gas B bind to one molecule of gas A and the reaction raises the temperature from #320^oK# to #450 ^oK#. How much does the pressure change by?
1 Answer
The final pressure will be 0.767 times the initial pressure.
Explanation:
The overall strategy for this problem is to determine the change in the number of moles present and then use the ideal gas law to calculate the pressure change.
We have a reaction where
A+ 2B -> C
Let
Let
Let
If all 5 moles of B react, then
The total number of moles,
Initially there were
Now we can use the Ideal Gas Law to calculate the ratio of the final pressure,