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Chemistry: Post your doubts here!
- Thread starter XPFMember
- Start date
I hope the same too ...Honestly, its just as likely that D was the answer and we are running in circles trying hard to justify B.
If I assume they are plotted on the same scale, and overlay the two graphs....if B was really the intended answer, would it be fair for students to see the very very slight shift to the right?Maybe you are on to something with the focus on the area, but it can be optically misleading.
If I were to take the exam that year, I would honestly say I would have chosen D at that moment (and possibly gotten it wrong).
Lets just hope the paper for this year avoids such ambiguity.
View attachment 54618
Help please ...
Which gas is likely to deviate most from ideal gas behaviour?
A HCl
B He
C CH4
D N2
The Ans is A ...
How do we know that HCL deviates most from the ideal gas behaviour ... do we have to memorise this or is there anyway we can find out ? please helpp
Which gas is likely to deviate most from ideal gas behaviour?
A HCl
B He
C CH4
D N2
The Ans is A ...
How do we know that HCL deviates most from the ideal gas behaviour ... do we have to memorise this or is there anyway we can find out ? please helpp
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if the Ans is D...
Attachments
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I think we have to look at the number of electrons.. the one with greatest number of e or the greatest MR will have the greatest strength of VWW forces of attraction
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HCl have most difference b/w electronegativity... (PRESENCE OF FORCE OF ATTRACTION)
So basically its like we have to see the forces between the atoms in the compound eh?
Thank you both of you
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We are asked to find the which deviates most from ideal gas behaviour.So basically its like we have to see the forces between the atoms in the compound eh?
Thank you both of you
one postulate of ideal gas is, it doesnt have inter molecular orce of attraction.. HCl was the strongest in this reason which makes you sure that it devieates most
ignore spell errors
Lol thats okay ... i understood clearly ... thank you soo muchWe are asked to find the which deviates most from ideal gas behaviour.
one postulate of ideal gas is, it doesnt have inter molecular orce of attraction.. HCl was the strongest in this reason which makes you sure that it devieates most
ignore spell errors
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why B? 
Because Compound B has the greatest number of C-H bonds...
do check for all other compounds ... and finally u will come to the conclusion as B
We studied this in Biology
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why not D? :S
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yeah but why don't we consider C-O bonds too?Because Compound B has the greatest number of C-H bonds...
do check for all other compounds ... and finally u will come to the conclusion as B
We studied this in Biology
Energy is released when these compounds undergo combustion ... combustion is basically reacting with Oxygen And compounds A, C, and D already have oxygen in them and have the same number of carbon atoms as B.. so we can considered them to be partly combusted.. Hence only compound B havent got Oxygen in it .. And so the Ans is Byeah but why don't we consider C-O bonds too?
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Trans and cis are possible at the double bonds when the ring has 8 or more carbons.
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Short note on periodicity chapter?
Actually one of my friends need it... anyone?
Actually one of my friends need it... anyone?
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http://www.docbrown.info/page13/page13b.htm
Short note on periodicity chapter?
Actually one of my friends need it... anyone?
- Messages
- 6,392
- Reaction score
- 26,955
- Points
- 698
http://www.s-cool.co.uk/a-level/chemistryShort note on periodicity chapter?
Actually one of my friends need it... anyone?
http://maxpapers.com/wp-content/uploads/2012/11/9701_s13_qp_12.pdf
somone help me out with question 21 guys
somone help me out with question 21 guys