Iota Posted June 28, 2014 Share Posted June 28, 2014 http://lessons.chemistnate.com/uploads/5/0/2/9/5029141/__4177903.png?223 I'm having trouble understanding how the 4th line is derived from the 3rd line, would anyone mind explaining to me? I understand how the RHS (right hand side) is merely being simplified, but why exactly does it become -1 over T1 and T2? To make -delta Hvap positive, would be the simple answer I suppose, but why does it work? In other words could you point out the rules in maths for this kind of rearranging? Thanks! Link to comment Share on other sites More sharing options...
studiot Posted June 28, 2014 Share Posted June 28, 2014 In line four if you multiply deltaH /R into both terms in the bracket, you recover line 3 and remove the bracket. All they have done is the equivalent of {-3/2a - 3/2b} take out the common terms 3/2 leaves 3/2{-1/a - 1/b} can you see it now it is simple algebra. Sorry I can't do the latex at the moment. 1 Link to comment Share on other sites More sharing options...
Iota Posted June 29, 2014 Author Share Posted June 29, 2014 Very well explained, yes I can see that now, cheers mate. Link to comment Share on other sites More sharing options...
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