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NEET UG CHEMISTRY MCQ: THERMODYNAMICS

1 Easy
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Application +4 | -1
For the reaction;   C2H5OH(l)+3O2(g)→  2CO2(g)+3H2O(l)\;{\mathrm{C}_2}{\mathrm{H}_5}\mathrm{OH}\left( l \right) + 3{\mathrm{O}_2}\left( \mathrm{g} \right) \to \;2C{O_2}(g) + 3{H_2}O(l) which one is true?
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Correct option: A
∆H= ∆U-RT
Option D (∆H= ∆U-RT) is correct because ∆H = ∆U + ∆n_g RT, and in this reaction, ∆n_g = (2) - (3) = -1.

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