Ethanol can undergoes decomposition to form two sets of products \[ \mathrm{C}_{2} \mathrm{H}_{5...
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0Ethanol can undergoes decomposition to form two sets of products
\[
\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}(\mathrm{g}) \longrightarrow \stackrel{\mathrm{I}}{\longrightarrow} \mathrm{C}_{2} \mathrm{H}_{4}(\mathrm{~g})+\mathrm{H}_{2} \mathrm{O}(\mathrm{g}) \quad \Delta \mathrm{H}^{\circ}=45 \mathrm{~kJ}
\]
\( P \)
W.
if the molar ratio of \( \mathrm{C}_{2} \mathrm{H}_{4} \) to \( \mathrm{CH}_{3} \mathrm{CHO} \) is \( 8: 1 \) in a set of product gases, then the enthalpyinvolved in the decomposition of 1 mole of ethano \( l \) is
- (A) \( 65 \mathrm{~kJ} \)
(B) \( 48 \mathrm{~kJ} \)
(C) \( 49 \mathrm{~kJ} \)
(D) \( 57 \mathrm{~kJ} \)
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