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Thermodynamics and Thermochemistry

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2021
At 298 K , the enthalpy of fusion of a solid $(\mathrm{X})$ is $2.8 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and the enthalpy of vaporisation of the liquid $(\mathrm{X})$...
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Q JEE MAIN 2021
For a given chemical reaction $\mathrm{A} \rightarrow \mathrm{B}$ at 300 K the free energy change is $-49.4 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and the enthalpy of reaction is...
JEE Main Chemistry Medium
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Q JEE MAIN 2021
For water at $100^{\circ} \mathrm{C}$ and $1 \mathrm{bar}, \Delta_{\text {vap }} \mathrm{H}-\Delta_{\text {vap }} \mathrm{U}=$ $\_\_\_\_$ $\times 10^2 \mathrm{~J} \mathrm{~mol}^{-1}$.
(Round off to the...
JEE Main Chemistry Easy
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Q JEE MAIN 2019
5 moles of an ideal gas at 100 K are allowed to undergo reversible compression till its temperature becomes 200 K . If $...
JEE Main Chemistry Easy
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Q JEE-MAIN 2021
During which of the following processes, does entropy decrease ?
JEE Main Chemistry Easy
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Q JEE MAIN 2021
Five moles of an ideal gas at 293 K is expanded isothermally from an initial pressure of 2.1 MPa to 1.3 MPa against at constant...
JEE Main Chemistry Medium
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Q JEE-Main-2021
The standard enthalpies of formation of $\mathrm{Al}_2 \mathrm{O}_3$ and CaO are $-1675 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and $-635 \mathrm{~kJ} \mathrm{~mol}^{-1}$ respectively. For the reaction $...
JEE Main Chemistry Medium
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Q JEE MAIN 2021
At $25^{\circ} \mathrm{C}, 50 \mathrm{~g}$ of iron reacts with HCl to form $\mathrm{FeCl}_2$. The evolved hydrogen gas expands against a constant pressure of 1 bar....
JEE Main Chemistry Medium
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Q JEE MAIN 2021
Assuming ideal behaviour, the magnitude of $\log \mathrm{K}$ for the following reaction at $25^{\circ} \mathrm{C}$ is $\mathrm{x} \times 10^{-1}$. The value of $x$ is $\_\_\_\_$...
JEE Main Chemistry Medium
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Q JEE Main 2019
Consider the reversible isothermal expansion of an ideal gas in a closed system at two different temperatures T1 and T2 (T1 < T2). The correct...
JEE Main Chemistry Medium
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