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josepharthur
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#1
Report Thread starter 10 years ago
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In my book it says that XeO4 is a pale yellow solid, that is explosive (∆fH=+642 kJmol^-1). This number, why quote it like that?

Is it because:

Xe + 2O2 => XeO4 ∆fH=+642 kJmol^-1

And therefore:

XeO4 => Xe + 2O2 ∆H=-642 kJmol^-1 (Which is a very exothermic quantity).
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EierVonSatan
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yeah that's reasonable
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Plato123
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Yes.
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josepharthur
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Cheers people.
I ought to rep you but I know it would not do any good.
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