Chemistry · 2026
JEE Main · 22 January 2026, Shift 1 · Q54
Match the LIST-I with LIST-II Choose the correct answer from the options given below:
Match the LIST-I with LIST-II
Choose the correct answer from the options given below:
| List-I Thermodynamic Process | List-II Magnitude in kJ | ||
| A. | Work done in reversible, isothermal expansion of $\displaystyle 2$ mol of ideal gas from $\displaystyle 2 \mathrm{dm}^3$ to $\displaystyle 20 \mathrm{dm}^3$ at $\displaystyle 300$ K. | I. | $\displaystyle 4$ |
| B. | Work done in irreversible isothermal expansion of $\displaystyle 1$ mol ideal gas from $\displaystyle 1 \mathrm{~m}^3$ to $\displaystyle 3 \mathrm{~m}^3$ at $\displaystyle 300$ K against a constant pressure of 3kPa. | II. | $\displaystyle 11.5$ |
| C. | Change in internal energy for adiabatic expansion of a $\displaystyle 1$ mol ideal gas with change of temperature = $\displaystyle 320$ K and $\displaystyle \overline{\mathrm{C}}_{\mathrm{V}}=\frac{3}{2} \mathrm{R}$. | III. | $\displaystyle 6$ |
| D. | Change in enthalpy at constant pressure of $\displaystyle 1$ mol ideal gas with change of temperature $\displaystyle =337 \mathrm{~K}$ and $\displaystyle \overline{\mathrm{C}}_{\mathrm{p}}=\frac{5}{2} \mathrm{R}$. | IV. | $\displaystyle 7$ |
Official answer
(4)
A-II, B-III, C-I, D-IV
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JEE Main 2026 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.