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Chemistry - Thermochemistry Question with Solution | TestHub

ChemistryThermochemistryEnthalpy of ReactionEasy2 minPYQ_2020

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The enthalpy of hydrogenation of cyclohexene is - 119.5 kJ mol^-1. If resonance energy of benzene is -150.4 kJ mol^-1, its enthalpy of hydrogenation would be

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Answer:

Solution:

Enthalpy of hydrogenation of benzene

$= 3 Δ H_{Hydrogenation} - (R.E)$

$= 3 \times (- 119 \cdot 5) - (- 150 \cdot 4) = - 358 \cdot 5 + 150 \cdot 4$

$= - 208 \cdot 1 {kJ mol}^{- 1}$

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:ThermochemistrySubtopic:Enthalpy of Reaction

⏱ 2mℹ️ Source: PYQ_2020

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