The standard enthalpies of formation of Al₂O₃ and CaO are - 1675 kJ mol⁻¹ and - 635 kJ mol⁻¹ respectively. For the reaction 3CaO + 2Al → 3Ca + Al₂O₃ the standard reaction enthalpy Δ r H⁰ = _ _ _ _ k J. (Round off to the Nearest Integer)

Chemical Thermodynamics: JEE Main 2021 Chemistry question

JEE Main 2021 · 17 Mar, Morning shift · Q20

JEE Main 202117 Mar, Morning shiftChemistryMediumChemical Thermodynamics84× since 2002

The standard enthalpies of formation of Al₂O₃ and CaO are

-

1675 kJ mol⁻¹ and

-

635 kJ mol^

-

1 respectively. For the reaction 3CaO + 2Al

\to

3Ca + Al₂O₃ the standard reaction enthalpy

\Delta

_rH⁰ = _________ kJ. (Round off to the Nearest Integer)

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2021 Chemical Thermodynamics Question with Answer (17 Mar Morning shift, Q20) | JEE Arc