32 JEE Main 2025 Thermodynamics (C) previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2025 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.
Given below are two statements : Statement I : When a system containing ice in equilibrium with water (liquid) is heate…
Given : aligned & Δ Hsub ⁱⁿus[C( graphite )]=710 ~kJ ~mol⁻¹ \\ & ₋H Hⁱⁿus=414 ~kJ ~mol⁻¹ \\ & ₋H HΘ=436 ~kJ ~mol⁻¹ \\ &…
Arrange the following in order of magnitude of work done by the system / on the system at constant temperature : (a) |w…
Let us consider a reversible reaction at temperature, T. In this reaction, both Δ H and Δ S were observed to have posit…
Two vessels A and B are connected via stopcock. The vessel A is filled with a gas at a certain pressure. The entire ass…
If C (diamond ) → C (graphite )+X kJ mol⁻¹ C( diamond )+O₂(~g) → CO₂(~g)+Y kJ mol⁻¹ C (graphite) +O₂(~g) → CO₂(~g)+Z kJ…
Which of the following graphs correctly represents the variation of thermodynamic properties of Haber's process?
Which of the following properties will change when system containing solution 1 will become solution 2?
Standard entropies of X₂, Y₂ and XY₅ are 70,50 and 110 ~J ~K⁻¹ ~mol⁻¹ respectively. The temperature in Kelvin at which…
¹ The standard enthalpy and standard entropy of decomposition of N₂ O₄ to NO₂ are 55.0 ~kJ ~mol⁻¹ and 175.0 ~J / K / mo…
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