Determine The Free Energy Change For The Reduction Of Cuo With Hydrogen.?
Tuesday, January 19th, 2010 at
11:01 am
Products and reactans are at 25 degrees celsius. The Change in entropy is -70.1 J/mol(K).
I know the equation that the Change in Free energy is = the change in enthalpy – the temperature times the change in the entropy but I cannot determine the cnahge in enthalpy. The chemical formula I got for the reaction is CuO+H2 Yields H2O+ Cu
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this depends upon the data, which you are allowed to use
lets say you are allowed to use the dG^o in the back of your text:
…………..CuO…..+…H2 –> H2O…….+…. Cu
dG’s= -128.3…& zero…-237.13………zero
dG reaction = prod – reactants = (-237.13) _ (-128.3)=
-108.83 kJ
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was their any other data given?