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Born haber cycle aqa Nelson thornes a2 p169 help watch

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    Hi I am not able to calulate the delta h l the enthalpy of mgcl2 on a worked example. The answer is -2524 but I keep getting another value which doesn't match the one in the eg. Can someone doing aqa a2 chen with a nelson thornes book page 169 pls help me out. By telling me the method of getting the correct value. Thank you
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    (Original post by gcseangel)
    Hi I am not able to calulate the delta h l the enthalpy of mgcl2 on a worked example. The answer is -2524 but I keep getting another value which doesn't match the one in the eg. Can someone doing aqa a2 chen with a nelson thornes book page 169 pls help me out. By telling me the method of getting the correct value. Thank you
    Check out this link:

    Born Haber MgCl2
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    (Original post by charco)
    Check out this link:

    Born Haber MgCl2

    That really is a good diagram is that site accessible to all?

    Do you have the Nelson Thornes A2 aqa textbook? I was referring to a specific example in my post about born haber cycles. But that site is very useful.

    So thanks
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    (Original post by gcseangel)
    That really is a good diagram is that site accessible to all?

    Do you have the Nelson Thornes A2 aqa textbook? I was referring to a specific example in my post about born haber cycles. But that site is very useful.

    So thanks
    Yes the site is accessible to all and no, I dont have the book, but I thought that if you looked at the BH stepwise you could find your mistake. If you are still puzzled I'll include the data in the diagram.
 
 
 

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