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PYQs/Chemistry/Enthalpy and Enthalpy Change

Chemistry2020easy

Enthalpy and Enthalpy Change

An increase in the concentration of the reactants of a reaction leads to change in

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Enthalpy and Enthalpy Change

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The standard heat of formation, in kcal/mol of $Ba^{2+}$ is : $\\$ [Given : standard heat of formation of $\mathrm{SO}_4^{2-}$ ion (aq) = –216 kcal/mol, standard heat of crystallisation of $BaSO_4$ (s) = –4.5 kcal/mol, standard heat of formation of $BaSO_4$ (s) = – 349 kcal/mol]

Which amongst the following options is the correct relation between change in enthalpy and change in internal energy?

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