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Size:  27.3 KB I don't understand the explanation for each of the answers? How can c not be the answer since there is no hydrogen in the equation. So surely the enthalpy change of hydrogen can't be used to represent water?

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    (Original post by coconut64)
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Size:  27.3 KB I don't understand the explanation for each of the answers? How can c not be the answer since there is no hydrogen in the equation. So surely the enthalpy change of hydrogen can't be used to represent water?

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    How do you get the water?
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    (Original post by alow)
    How do you get the water?
    Hydrogen reacting with oxygen. But this is only one reaction, so surely you will just use the enthalpy change of water ...
 
 
 
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Updated: January 28, 2017
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“Yanny” or “Laurel”

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

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