February 23, 2017

Homework Help: Chemistry-pls help

Posted by jan on Wednesday, April 1, 2009 at 9:23am.

I refer to the following question. Is my explanation correct, that step two
C6H14(g)--> 6CO2(g) + 7H2O(g)
can be considered combustion reaction?
Thank you!

Posted by jan on Tuesday, March 31, 2009 at 10:28pm.

C6H14(l)->C6H14(g) ->6CO2(g) + 7H2O(g) ->6CO2(g) + 7H2O(l)
Hexane is a liquid at room temp. It can be converted into carbon dioxide and water through the above processes. There are 3 steps. Steps 2 & 3 are exothermic, right? I think step 2
C6H14(g)->6CO2(g) + 7H2O(g) is something like combustion so it is exothermic.Please help.


Chemistry pls help - bobpursley, Tuesday, March 31, 2009 at 10:50pm

Chemistry pls help - DrBob222, Tuesday, March 31, 2009 at 10:56pm
But step 1 is endothermic.

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