Plz explain this question..... using iess s following example example. calculate the enthalpy

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According to Hess's Law - ΔH=ΔH1+ΔH2ΔH=ΔH1+ΔH2 −66.5kJ=ΔH1+11.7kJ-66.5kJ=ΔH1+11.7kJ ΔH1=−78.2kJ

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sir I didn't get

dono ko minus krke aim equation kaise aayega

see Shweta....aim the equation and arrange the given reaction

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have you check it shweta??

sir in second equation how solution of hydrates copper sulphate produce water...

shweta aqueos means it is present in water and if substance is in liquid form then it is written l

pentahydrate copper sulphate is a cystalline solid...

5h20 means cuso4 present in 5 molecules of water

yes when it is hydrated and present in aqueous medium

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