00:01
Question number of 30 tells us to write the rate of change of each reactant and products for each of the following.
00:10
So for a, the rate is equal to the change in rate of the product, f5sof gas, over the change in time.
00:28
Now the square brackets are telling you about the concentration.
00:39
Okay.
00:41
Okay, so then next for the reactants, it will be negative of the change of the concentration of s -o -f -2 gas over the change in time.
00:56
And the reason why the reactants are negative is because the concentration of the reactions are decreasing.
01:02
Over time so that you can make your product and the last one change in concentration of lowering gas over time and i almost forgot you needed two here in front because of this two okay for b the rate is equal the same principle as a so i'm going to start with the reactions of the change of concentration of b2h6 gas over time is equal to minus 6 times of change in concentration of chlorine gas over time, which is equal to positive change in the concentration of b .c .l.
02:08
3 gas.
02:16
And i almost forgot to put a tube in front of here over time.
02:28
And where the last one is equal to six times a change in concentration of h .c .l...