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CHEM AND BIO HELP AND TIPS HERE

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Deniz:
can u pls write the catalyst that we should know for paper3 ?

MasterMath:

--- Quote from: Deniz on June 06, 2010, 10:37:38 am ---can u pls write the catalyst that we should know for paper3 ?

--- End quote ---
Finely divided iron for HABER PROCESS 450C 200 atm
Vanadium(V)Oxide for Contact process 450C 2atm
For cracking Alkanes - Al2O3/SiO2 and 500C and 10-12 atm
thats all i can remember now maybe im missing some reactions!

luv3life:
Guys, any help/tips for Chemistry Paper 3? I'm not at all well-prepared. I'm talking about notes, etc.

WARRIOR:

--- Quote from: farahkuwait on June 06, 2010, 10:36:55 am ---Im sorry i just dont get why the yield increses when equilibrium shifts from right to left.. will you please explain.

--- End quote ---
look , right now the forward reaciton is exothermic , so imagine u are heating so u are producing more of teh S03

so wherever equilibrium is , the side , reactants or products INCREASE ! , right now it is hight temp and so u go to exothermic direction and so equilbrium is at the RIGHT

but now if u decrese the temp  that means you are cooling that means u are movin in the endothermic direction to cool

so from left to right
get it?

Deniz:

--- Quote from: MasterMath on June 06, 2010, 10:40:05 am ---Finely divided iron for HABER PROCESS 450C 200 atm
Vanadium(V)Oxide for Contact process 450C 2atm
For cracking Alkanes - Al2O3/SiO2 and 500C and 10-12 atm
thats all i can remember now maybe im missing some reactions!

--- End quote ---

thx. if u remember more can u pls write again ?

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