This is all about Le Chatelier's Principle and it's easy if you just remember a couple of things.
1. The principle tells us that when a system at equilibrium is disturbed, it will react to undo what we did to it.
a. An increase in pressure shifts it to the side with fewer GAS moles.
b. An increase in reactants or products shifts the reaction AWAY from what you have added.
c. An increase in T is treated as in b.
d. Adding an inert gas has no effect.
So if we remove CH3OH the reaction tries to replace what we've removed. How can it do that. Easy. Make more so the reaction shifts to the right.
What if we add H2 or CO. Now there is too much CO or H2, the reaction must rreact to get rid of some of it. How can it do that. Easy. The reaction to the right so as to use up the added CO or added H2. In this case more CH3OH is produced the same as if we remove some of the CH3OH. Students get so confused about this one concept in chemistry. But you can know what is what just by following the logic above.
Use the following equation:
CO(g) + 2H2 (g)= CH3OH(g) delta H = -21.7 kcal
Which direction will the reaction proceed after some of the methanol vapor is condensed and removed from the reaction vessel?
please help im getting so confused on the directions of the reactions
1 answer