Difficulty distribution
How the classified questions are distributed by difficulty.
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Practice Thermodynamics - Physical Chemistry - Chemistry previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
Every graph below is calculated only from this selection.
Year-wise coverage for Thermodynamics. Each bar uses a separate theme-derived color.
How the classified questions are distributed by difficulty.
MCQ, numerical, multiple-select and other formats found in these papers.
Top subjects by unique question coverage.
Top topics across the included previous year papers.
Top subtopics inside this exact selection.
Question coverage for the most populated papers. Every active PYP paper remains listed below.
Newest papers appear first. Sort by year, question coverage or name.
| Paper | Year / session | Questions in this view | Open |
|---|---|---|---|
| MHT CET (PCB) 2025 9th April Evening Shift | 2025 | 3 | View paper |
| MHT CET (PCB) 2024 22th April Evening Shift | 2024 | 2 | View paper |
| MHT CET (PCB) 2024 22th April Morning Shift | 2024 | 1 | View paper |
Practice every matching question in batches of 20, with every available option.
One mole of a perfect gas expands isothermally and reversibly from $10 \mathrm{dm}^3$ to $20 \mathrm{dm}^3$ at 300 K . Find $\Delta \mathrm{U}, \mathrm{q}$ and work done respectively in the process. $\left(\mathrm{R}=8.3 \times 10^{-3} \mathrm{~kJ} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right)$
Which of the following symbols represents heat of reaction at constant pressure?
Which from following terms is explained by first law of thermodynamics?
Which from following reactions performs highest + ve work at $25^{\circ} \mathrm{C}$ ?
Calculate standard Gibbs energy for a certain reaction if $\Delta \mathrm{H}^{\circ}$ and $\Delta \mathrm{S}^{\circ}$ respectively are $219 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and $-20 \mathrm{JK}^{-1}$.
Calculate the change in internal energy of the system if 15 kJ of work done on the surrounding and system releases 10 kJ of heat in a particular reaction.