Choose the reaction(s) from the following options, for which the standard enthalpy of…
Chemistry · JEE Advanced · NTA Exams — Chemical Thermodynamics
Choose the reaction(s) from the following options, for which the standard enthalpy of reaction is equal to the standard enthalpy of formation (2019)
- \(\frac{1}{8} \mathrm{~S}_{\mathrm{s}}(\mathrm{~s})+\mathrm{O}_{2}(\mathrm{~g}) \mathrm{SO}_{2}(\mathrm{~g})\)
- \(2 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})\)
- \(\frac{3}{2} \mathrm{O}_{2}(\mathrm{~g}) \rightarrow \mathrm{O}_{3}(\mathrm{~g})\)
- \(2 \mathrm{C}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightarrow \mathrm{C}_{2} \mathrm{H}_{6}(\mathrm{~g})\)
Answer
(A) 1 8 ~S _ s ( ~s )+ O _ 2 ( ~g ) SO _ 2 ( ~g ), (C) 3 2 O _ 2 ( ~g ) O _ 3 ( ~g )
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