guys please, you have to admit that this was the easiest exam out of all of the past papers. in january 2010 the boundary was 38 for an A*. this was easier so i have a bad feeling.....maybe 39/40 for an A*.
guys please, you have to admit that this was the easiest exam out of all of the past papers. in january 2010 the boundary was 38 for an A*. this was easier so i have a bad feeling.....maybe 39/40 for an A*.
I completely dissagree! I found the jan mock very very easy and got and A and this very hard and Im thinking ill get a C from it
The one about pressure was why dont the manufactorers increase the pressure to above (really high number)?
The one about yield and pressure was. Why does increasing the pressure increase the yield? the answer is because there is more molecules of gas on the reactant side. . .
The one about yield and pressure was. Why does increasing the pressure increase the yield? the answer is because there is more molecules of gas on the reactant side. . .
Yes thats correct, its becuase there are more mjoles of products than there are of reactants and the increase in pressure prefers that so it produces a higher yield of reaction