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Why is the enthalpy of sublimation equal...

Why is the enthalpy of sublimation equal to the sum of enthalpy of fusion and enthalpy of vaporisation ?

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The correct Answer is:
Since, sublimation involves `(##RES_PHY_CHM_XI_C03_E01_183_A01##)` According to Hess's law, `DeltaH_((f))+DeltaH_((v))=DeltaH_((s))`

Since, sublimation involves
According to Hess's law, `DeltaH_((f))+DeltaH_((v))=DeltaH_((s))`
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