00:02
For the given reaction, nitrogen gas reacting with 3 moles of hydrogen gas and it produces 2 moles of ammonia gas, nh3 gas.
00:16
Here, it is given that kc is equals to 0 .159, delta h0 is equal to minus 111 kilojoula.
00:34
That heat is leased during the reaction.
00:37
So, reaction is an exothermic reaction.
00:43
Now we have to find delta ng.
00:47
Delta ng is what? change in number of moles of product in gasiestate to the number of moles of reactants.
00:55
So it is number of moles of product in gasiestate minus number of moles of reactant in gaseous state.
01:02
So as in case of product there are 2 moles and in case of reactant there are 4 moles so delta ng is equals to that is here minus 2 now it is asked in the question that if volume of equilibrium system is decreased then reaction shift in which direction so as you know that volume is decreasing so what will happen to reaction so here we have to apply the leach -atlear principles.
01:39
According to this principle, what will happen at equilibrium? equilibrium always tries to cancel the change.
01:52
Equilibrium always tries to cancel the change.
02:00
To cancel the change...