- Messages
- 222
- Reaction score
- 25
- Points
- 38
Quote me the values and I'll solve it here!
Delta change of combustion:
CO --------------> -283
H2 --------------> -286
Methanol--------> -726
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Quote me the values and I'll solve it here!
it depends if u manage to get about 55 u can get an A warna B for sure ,,,,,, dua kro k u get some extra marks then u will get an A for sure =)I am expecting 33 in p12, 47 in p22 and 21 in p33. What grade should I expect?
Delta change of combustion:
CO --------------> -283
H2 --------------> -286
Methanol--------> -726
=((-283)+(2 x -286)) - (-726)
=(-283-572) + 726
=-855+726
=-129 KJ/mol
=((-283)+(2 x -286)) - (-726)
=(-283-572) + 726
=-855+726
= -129 KJ/mol
Notice the green negative sign ... which caused all confusion
Arguing and fighting like wolves over one mark only. Oh CIE What have you made us into ?
well well those who got that wrong... might have used wrong formula in the first step... so wont they get 3 marks cut.... cuz if you do like products - reactants its + but reactants - products is - so....?
lets hope for the best you got that one correct nah?
i made aldehyde for the last page question asking for diagram of functional group silly me so the next question was automatically wrong.... wont it be or ecf will help me here?
rest was fine as far as i remember Alhamdulilah
but that cis trans one.... how did ya draw it? confused over it still
so u drew the same as this pic? i drew the same exact
this one is wrong....it had only two carboxlic groups.Something like that.... Not entirely sure though
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