AP EAMCET · PHYSICS · Thermodynamics
Two cylinders \(A\) and \(B\) fitted with pistons contain equal number of moles of an ideal monoatomic gas at \(400 \mathrm{~K}\). The piston of \(A\) is free to move while that of \(B\) is held fixed. Same amount of heat energy is given to the gas in each cylinder. If the rise in temperature of the gas in \(A\) is \(42 \mathrm{~K}\), the rise in temperature of the gas in \(B\) is
- A \(21 \mathrm{~K}\)
- B \(35 \mathrm{~K}\)
- C \(42 \mathrm{~K}\)
- D \(70 \mathrm{~K}\)
Answer & Solution
Correct Answer
(C) \(42 \mathrm{~K}\)
Step-by-step Solution
Detailed explanation
From first law of thermodynamics \(Q=\Delta U+W\) For cylinder \(A\) pressure remains constant \(\therefore\) Work done by a system \(W=\frac{\mu R}{\gamma-1}\left(T_1-T_2\right)\) For monoatomic gases…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- The ratio of the orders of the spacings of nuclear energy levels and atomic energy levels isAP EAMCET 2025 Easy
- Two electric dipoles of moments \(p\) and \(27 p\) are placed in opposite direction on a line at a distance of \(24 \mathrm{~cm}\). The electric field will be zero at a point between the dipoles whose distance from the dipole of moment \(p\) isAP EAMCET 2021 Medium
- For a common-emitter transistor amplifier, the current gain is 60 . If the emitter current is \(6.6 \mathrm{~mA}\), then its base current isAP EAMCET 2016 Easy
- A gas is expanded from an initial state to a final state along a path on a diagram. The path consists of (i) an isothermal expansion of work , (ii) an adiabatic expansion and (iii) an isothermal expansion of work . If the internal energy of gas is changed by , then the work done by gas during adiabatic expansion isAP EAMCET 2022 Easy
- At what temperature does the velocity of sound in air increased by 10% comparison with velocity at \(0^{\circ} \mathrm{C}\) ?AP EAMCET 2021 Medium
- A gas does \(4.5 \mathrm{~J}\) of external work during adiabatic expansion. If its temperature falls by \(2 \mathrm{~K}\), then its internal energy will beAP EAMCET 2015 Medium
More PYQs from AP EAMCET
- ft.\left|z-\frac{1+3 i}{2}\right|=\frac{\sqrt{10}}{2}\right\}\)
If \(P, Q\) and \(R\) are points, respectively representing the complex numbers \(z, z e^{\frac{i \pi}{3}}\) and \(z\left(1+e^{\frac{i \pi}{3}}\right)\) in argand plane, then the area of the triangle \(P Q R\), isAP EAMCET 2019 Easy - \(\tan \left(2 \operatorname{Tan}^{-1}\left(\frac{1}{3}\right)+\operatorname{Tan}^{-1}\left(\frac{1}{7}\right)\right)=\)AP EAMCET 2025 Medium
- A ball is thrown upward from the top of a building at an angle of \(30^{\circ}\) to the horizontal and with an initial speed of \(20 \mathrm{~ms}^{-1}\). If the ball strikes the ground after \(3 \mathrm{~s}\). then the height of the building is
(acceleration due to gravity \(=10 \mathrm{~ms}^{-1}\) )AP EAMCET 2022 Easy - If \(Z_r=\cos \left(\frac{\pi}{2^r}\right)+i \sin \left(\frac{\pi}{2^r}\right)\) for \(r=1,2,3, \ldots\). , then \(Z_1 Z_2 Z_3 \ldots \infty\) equals toAP EAMCET 2014 Hard
- If \(\bar{a}=2 \bar{i}-3 \bar{j}+5 \bar{k}\) and \(\bar{b}=-\bar{i}+3 \bar{j}+3 \bar{k}\) are two vectors, then the vector of magnitude 28 units in the direction of the vector \(\bar{a}-\bar{b}\) isAP EAMCET 2025 Medium
- The monomer of neoprene isAP EAMCET 2012 Easy