Thermodynamics PYQs - Last 10 Years
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ChemistryPhysical Chemistry2017-2026
Practice 14 KCET Chemistry questions from Thermodynamics. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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Chemistry / Physical Chemistry
2017-2026
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2022-2026
14
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2017-2026
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11 in last 5 years14 in last 10 years
Last 10 Years Thermodynamics Questions
Showing 14 of 14 filtered questions.
1Thermodynamics
A: Entropy of a perfect crystalline solid at absolute zero approaches zero.B: For spontaneity of a reaction, $T\Delta S > \Delta H$.Among the two statements given above, identify the correct answer from the options given below.
MCQ+1 / -02026
2Thermodynamics
Which of the following is a correct statement for a thermodynamic system?
MCQ+1 / -02026
3Thermodynamics
A gas can be taken from A to B via two different paths ACB and ADB.When path ACB is used, $60$ J of heat flows into the system and $30$ J of work is done by the system. If path ADB is used, work done by the system is $10$ J.The heat flow in...
MCQ+1 / -02026
4Thermodynamics
Identify the incorrect statements among the following:
(a) All enthalpies of fusion are positive
(b) The magnitude of enthalpy change does not depend on the strength of the intermolecular interactions in the substance undergoing phase trans...
(a) All enthalpies of fusion are positive
(b) The magnitude of enthalpy change does not depend on the strength of the intermolecular interactions in the substance undergoing phase trans...
MCQ+1 / -02025
5Thermodynamics
Which one of the following reactions has $\Delta \mathrm{H}=\Delta \mathrm{U}$ ?
MCQ+1 / -02025
6Thermodynamics
Given below are two statements.
Statement-I : Adiabatic work done is positive when work is done on the system and internal energy of the system increases.
Statement - II : No work is done during free expansion of an ideal gas.
In the light ...
Statement-I : Adiabatic work done is positive when work is done on the system and internal energy of the system increases.
Statement - II : No work is done during free expansion of an ideal gas.
In the light ...
MCQ+1 / -02025
7Thermodynamics
From the diagram $(Z)=\frac{V_{\text {real }}}{V_{\text {ideal }}}$
$\Delta_r H$ for the reaction, $C \rightarrow A$ is
$\Delta_r H$ for the reaction, $C \rightarrow A$ is
MCQ+1 / -02024
8Thermodynamics
Temperature of \(25^{\circ} \mathrm{C}\) in Fahrenheit and Kelvin scale respectively are
MCQ+1 / -02023
9Thermodynamics
Lattice enthalpy for \(\mathrm{NaCl}\) is \(+788 \mathrm{~kJ} \mathrm{~mol}^{-1}\) and \(\Delta H_{\text {hyd }}^{\circ}=-784 \mathrm{~kJ} \mathrm{~mol}^{-1}\). Enthalpy of solution of \(\mathrm{NaCl}\) is
MCQ+1 / -02023
10Thermodynamics
A gas at a pressure of \(2 \mathrm{~atm}\) is heated from \(25^{\circ} \mathrm{C}\) to \(323^{\circ} \mathrm{C}\) and simultaneously compressed of \(\frac{2}{3}\)rd of its original value. Then the final pressure is
MCQ+1 / -02023
11Thermodynamics
The work done when 2 moles of an ideal gas expands rèversibly and isothermally from a volume of \(1 \mathrm{~L}\) to \(10 \mathrm{~L}\) at \(300 \mathrm{~K}\) is
(\(R=0.0083 \mathrm{~kJ} \mathrm{~K} \mathrm{~mol}^{-1}\))
(\(R=0.0083 \mathrm{~kJ} \mathrm{~K} \mathrm{~mol}^{-1}\))
MCQ+1 / -02022
12Thermodynamics
When the same quantity of heat is absorbed by a system at two different temperatures \(T_1\) and \(T_2\), such that \(T_1>T_2\), change in entropies are \(\Delta S_1\) and \(\Delta S_2\) respectively. Then
MCQ+1 / -02020
13Thermodynamics
The reaction in which \(\Delta H=\Delta U\) is
MCQ+1 / -02019
14Thermodynamics
A reaction has both $\Delta H$ and $\Delta S$ -ve. The rate of reaction
MCQ+1 / -02017