JEE Main 2019ChemistryThermodynamics (C)

JEE Main 2019 — Thermodynamics (C) Questions with Solutions

23 JEE Main 2019 Thermodynamics (C) previous-year questions with verified answers and step-by-step solutions.

These are the JEE Main 2019 previous-year questions from the Thermodynamics (C) chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Thermodynamics (C) chapter hub.

  1. Q12019MCQHard

    The standard reaction Gibbs energy for a chemical reaction at an absolute temperature T is given by Δ Gⁱrc=A-BT where A…

  2. Q22019MCQMedium

    The difference between ∆ H and ∆ U is ∆ H - ∆ U , when the combustion of one mole of heptane l…

  3. Q32019MCQMedium

    The reaction MgO(s)+C(s) → Mg(s)+CO(g), for which Δ Hⁱrc=+491.1 ~kJ ~mol⁻¹ and Δ Sⁱrc=198.0 JK⁻¹ ~mol⁻¹ is not feasible…

  4. Q42019MCQHard

    Enthalpy of sublimation of iodine is 24   c a l   g - 1 at   200 ° C . If specific heat of I 2 (s)…

  5. Q52019MCQMedium

    For the chemical reaction X Y, the standard reaction Gibbs energy depends on temperature T (in K ) as Gⁱrc ( . in .kJ m…

  6. Q62019MCQEasy

    Which one of the following equations does not correctly represent the first law of thermodynamics for the given process…

  7. Q72019MCQMedium

    5 moles of an ideal gas at 100   K are allowed to undergo reversible compression till its temperature becomes 200…

  8. Q82019MCQHard

    An ideal gas undergoes isothermal compression from 5   m 3 to 1   m 3 against a constant external pressure of…

  9. Q92019MCQMedium

    Two blocks of the same metal having same mass and at temperature T₁, and T₂, respectively, are brought in contact with…

  10. Q102019MCQMedium

    The combination of plots which does not represent isothermal expansion of an ideal gas is ( A ) ( B ) C ( D )

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