00:01
This question is in reference to les chate leis principle, and you're asked to determine the direction of shift when temperature has changed, pressure is changed, and the concentration of one of the substances has changed.
00:12
For the first reaction, we have carbon solid reacting with vapor, water vapor, creating carbon monoxide and hydrogen gas.
00:20
Delta h is positive, so this is an endothermic process.
00:24
For endothermic processes, when temperature is increased, the equilibrium constant is increased.
00:30
And it shifts farther to the right.
00:34
If pressure is decreased, a decrease in pressure often corresponds to an increase in volume.
00:41
An increase in volume shifts the reaction towards more moles of gas.
00:46
So a decrease in pressure goes to more moles of gas, more moles of gas are found on the right hand side, so it shifts right.
00:55
And for the last one, more of the colored substance.
00:59
The colored substance is this one is added.
01:01
So if we have add carbon monoxide, it's going to shift to the left.
01:07
The next reaction, which you've got a sneak peek of, we've got iron with water going to iron, combination of iron two and three oxide, producing hydrogen gas...