A2 Chemistry 2008

Hi guys,
Question for those of you who did the A2 chemistry edexcel paper yesterday.
How was it for everyone? What was the easiest and hardest question for you?

Reply 1

bobx2001

I thought the second question on Unit 5 was a bit funny, I have never really seen partial pressures being used in rates equations so that threw me off a bit, I just treated the partial pressures as if they were concentration and continues, so i go the rate with respect to NO as 2 and with respect to oxygen as 1. then the reason that the reaction was very slow during the thunder storm was that the partial pressure of the NO in an open space which you can consider to be a container of very high volume would be very very low so the rate would be also be low as well.

Reply 2

alsonic

i thought that question was alright.....by the way...how do u think N double bond N shows geometrical isomerism?? that's just..wrong.......this question was in unit 5 as well....and unit 4...wat value did u get for the heat of solution and wat did u get for electron affinity of fluorine?? just checking.