Consider the reaction 2H₂S(g)+3O₂(g)→2H₂O(l)+2SO₂(g). The magnitude of enthalpy change for the reaction in kJ mol ⁻¹ is _ _ _. (Nearest integer) Given: Δ f H^ (H₂S)=-20.1 kJ mol ⁻¹, Δ f H^ (H₂O)=-286.0 kJ mol ⁻¹, Δ f H^ (SO₂)=-297.0 kJ mol ⁻¹

Chemical Thermodynamics: JEE Main 2026 Chemistry question

JEE Main 2026 · 8 Apr, Evening shift · Q74

JEE Main 20268 Apr, Evening shiftChemistryMediumChemical Thermodynamics84× since 2002

Consider the reaction

\mathrm{2H_2S(g)+3O_2(g)\to2H_2O(l)+2SO_2(g)}

. The magnitude of enthalpy change for the reaction in kJ mol

^{-1}

is ______. (Nearest integer) Given :

\Delta_fH^\ominus(\mathrm{H_2S})=-20.1

kJ mol

^{-1}

\Delta_fH^\ominus(\mathrm{H_2O})=-286.0

kJ mol

^{-1}

\Delta_fH^\ominus(\mathrm{SO_2})=-297.0

kJ mol

^{-1}

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2026 Chemical Thermodynamics Question with Solution (8 Apr Evening shift, Q74) | JEE Arc

JEE Main 2026 · 8 Apr, Evening shift · Q74

JEE Main 20268 Apr, Evening shiftChemistryMediumChemical Thermodynamics84× since 2002

Consider the reaction

\mathrm{2H_2S(g)+3O_2(g)\to2H_2O(l)+2SO_2(g)}

. The magnitude of enthalpy change for the reaction in kJ mol

^{-1}

is ______. (Nearest integer) Given :

\Delta_fH^\ominus(\mathrm{H_2S})=-20.1

kJ mol

^{-1}

\Delta_fH^\ominus(\mathrm{H_2O})=-286.0

kJ mol

^{-1}

\Delta_fH^\ominus(\mathrm{SO_2})=-297.0

kJ mol

^{-1}

Your answerType your answer. Integers and decimals are accepted.