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Chemistry
Which of the following relationships is not correct?
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Q. Which of the following relationships is not correct?
Thermodynamics
A
$\Delta H = \Delta U+\Delta n_{g}RT$
B
$\Delta H_{sub} = \Delta H_{fusion} + \Delta H_{vap}$
C
$\Delta H^{\circ}_{r} = \Sigma\,H^{\circ}_{f\left(reactants\right)} - \Sigma\,H^{\circ}_{f\left(products\right)}$
D
$\Delta H^{\circ}_{r} = \Sigma\,B.E.$ of reactants $-\Sigma\, B.E$ of products
Solution:
Correct answer is (c) $\Delta H^{\circ}_{r} = \Sigma\,H^{\circ}_{f\left(reactants\right)} - \Sigma\,H^{\circ}_{f\left(products\right)}$