00:01
We have an equilibrium system 2so3 to give you decomposes to give you 2so2 plus o2.
00:13
Gas, gas.
00:16
Now, it said that the temperature was lowered, right? we decreased, there was a decrease in the temperature.
00:24
And what was it? what happens? the concentration of the reactant and product changes and a new equilibrium position is formed.
00:30
Now, at the new equilibrium position, the concentration of so3 was higher than before the temperature was lowered.
00:38
So, meaning that when the temperature was lowered, equilibrium position, right? shifted, moved left.
00:49
Position moved, right? left.
00:55
That's what it means.
00:57
Now, here's it.
00:58
And so we're now asked, is the reaction, what does it mean about the reaction? is the reaction endo or exo? well, quite simply, you need to remember that according to le chatelier's principle, a decrease in temperature will always favor the exothermic side, favors exothermic side of the reaction of the system, right? a decrease in temperature would always favor, will favor the exothermic side of the reaction...