C4 is a doddle-dot and cross/covalent bonding and percipitation are the main headaches! The calculation parts of c5 is easy....some bits are annoying! c6 is the hardest GRRR i don't get hydrogen fuel cells or equilibrium!
Gr... im starting C6 today...hopefully finish it by about 1..then smash through load of questions When is your C3 exam,,or have you took it,,,,its normally before c4?
Gr... im starting C6 today...hopefully finish it by about 1..then smash through load of questions When is your C3 exam,,or have you took it,,,,its normally before c4?
Hey please can someone explain to me how and why temperature and pressure affects equilibrium.
when you increase the temprature, equilibrium tries to oppose it, thus favours the side of the reaction which is endothermic, to reduce the amount of heat,to rreduce the temprature
when you decrease the temprature, equilibrium tries to oppose it, thus favours the side of the reaction which is exothermic,to produce more heat and even it out
With presure you need to look at the number of moles, of each Gas on both sides of the equation
If you increase the pressure, you increase the rate of the side of the equation that has more moles of gas .... so equilibrium shifts to the other side,where there are less moles,and also more of that reactant/product
Since it is a reversible reaction.... it can go both ways - so you want more product and so you change the conditions (temprature,pressure,concentration) to make more product!
True but it depends on how you're revising, I guess you're reading it out?
Nope, reading, writing then reciting ... in that order..then i have y notes for later as well....athough i tend to make a whle new set of notes every time i revise
Gr... im starting C6 today...hopefully finish it by about 1..then smash through load of questions When is your C3 exam,,or have you took it,,,,its normally before c4?
Gr... im starting C6 today...hopefully finish it by about 1..then smash through load of questions When is your C3 exam,,or have you took it,,,,its normally before c4?
Ryan
For electrolysis and half-equations will we be given the charges, say Br-, or will we need to know them?