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प्रश्न
Write an application of Hess’s law.
उत्तर १
The Hess's law has been useful to calculate the enthalpy changes for the reactions with their enthalpies being not known experimentally.
उत्तर २
- It helps in calculating the enthalpies of formation of those compounds which cannot be determined experimentally.
- It helps in determining the enthalpy of allotropic transformation like C(graphite)→C(diamond)
- It helps in calculating the enthalpy of hydration.
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