Heat and Thermodynamics PYQs - Last 5 Years
KCET / Physics / Mechanics / 14 recent questions
PhysicsMechanics2022-2026
Practice 14 KCET Physics questions from Heat and Thermodynamics. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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2022-2026
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Last 5 Years Heat and Thermodynamics Questions
Showing 14 of 14 filtered questions.
1Heat And Thermodynamics
The graph of pressure P and volume V of $1$ mole of an ideal gas at constant temperature is
MCQ+1 / -02026
2Heat And Thermodynamics
In thermodynamic processes, which of the following statements is not true?
MCQ+1 / -02026
3Heat And Thermodynamics
Following are statements of a few processes taking place in nature.I. Free expansion of a gasII. The combustion of a mixture of petrol and air ignited by a sparkIII. The leaking of gas from the kitchen cylinder.IV. The transfer of heat from...
MCQ+1 / -02026
4Heat And Thermodynamics
Three metal rods of the same material and identical in all respects are joined as shown in the figure. The temperatures at the ends of these rods are maintained as indicated. Assuming no heat energy loss occurs through the curved surfaces o...
MCQ+1 / -02025
5Heat And Thermodynamics
At $27^{\circ} \mathrm{C}$ temperature, the mean kinetic energy of the atoms of an ideal gas is $\mathrm{E}_1$. If the temperature is increased to $327^{\circ} \mathrm{C}$, then the mean kinetic energy of the atoms will be
MCQ+1 / -02025
6Heat And Thermodynamics
A gas is taken from state A to state B along two different paths 1 and 2. The heat absorbed and work done by the system along these two paths are $Q_1$ and $Q_2$ and $W_1$ and $W_2$ respectively. Then
MCQ+1 / -02025
7Heat And Thermodynamics
One mole of an ideal monoatomic gas is taken round the cyclic process MNOM. The work done by the gas is
MCQ+1 / -02024
8Heat And Thermodynamics
The ratio of molar specific heats of oxygen is
MCQ+1 / -02024
9Heat And Thermodynamics
A solid cube of mass $m$ at a temperature $\theta_0$ is heated at a constant rate. It becomes liquid at temperature $\theta_1$ and vapour at temperature $\theta_2$. Let $s_1$ and $s_2$ be specific heats in its solid and liquid states respec...
MCQ+1 / -02024
10Heat And Thermodynamics
Pressure of ideal gas at constant volume is proportional to .........
MCQ+1 / -02023
11Heat And Thermodynamics
The speed of sound in an ideal gas at a given temperature \(T\) is \(v\). The rms speed of gas molecules at that temperature is \(v_{\text {rms }}\). The ratio of the velocities \(v\) and \(v_{\text {rms }}\) for helium and oxygen gases are...
MCQ+1 / -02023
12Heat And Thermodynamics
The \(p\)-\(V\) diagram of a Carnot's engine is shown in the graph below. The engine uses 1 mole of an ideal gas as working substance. From the graph, the area enclosed by the \(p\)-\(V\) diagram is [The heat supplied to the gas is 8000 J]
MCQ+1 / -02023
13Heat And Thermodynamics
\(100 \mathrm{~g}\) of ice at \(0^{\circ} \mathrm{C}\) is mixed with \(100 \mathrm{~g}\) of water at \(100^{\circ} \mathrm{C}\). The final temperature of the mixture is
[Take, \(L_f=3.36 \times 10^5 \mathrm{~J} \mathrm{~kg}^{-1}\) and $$S_w...
[Take, \(L_f=3.36 \times 10^5 \mathrm{~J} \mathrm{~kg}^{-1}\) and $$S_w...
MCQ+1 / -02023
14Heat And Thermodynamics
"Heat cannot be flow itself from a body at lower temperature to a body at higher temperature". This statement corresponds to
MCQ+1 / -02022