TS EAMCET · Physics · Thermodynamics
A polyatomic gas follows a law \(T^2 V^\alpha=\) constant. Find \(\alpha\) for which the heat exchange of gas in the process becomes zero.
- A \(\alpha=\frac{3}{2}\)
- B \(\alpha=\frac{2}{3}\)
- C \(\alpha=\frac{4}{3}\)
- D \(\alpha=\frac{3}{4}\)
Answer & Solution
Correct Answer
(B) \(\alpha=\frac{2}{3}\)
Step-by-step Solution
Detailed explanation
The process in which there is no heat exchange of gas, it is called adiabatic process. In this process, \(T V^{\gamma-1}=k\) [constant \(]\) Now, \(T^2 V^{2(\gamma-1)}=k^2= constant\)....(i) Given that, \(T^2 V^\alpha=\) constant.....(ii) Comparing Eqs. (i) and (ii), we get…
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 range of weak nuclear force is of the order ofTS EAMCET 2025 Easy
- A helicopter flying horizontally with a velocity of 288 kmph drops a bomb. If the line joining the point of dropping the bomb, and the point where bomb hits the ground makes an angle \(45^{\circ}\) with the horizontal, then the height at which the bomb was dropped is (Acceleration due to gravity \(=10 \mathrm{~ms}^{-2}\) )TS EAMCET 2025 Medium
- A charge of \(1 \mu \mathrm{C}\) is divided into two parts such that their charges are in the ratio of \(2: 3\). These two charges are kept at a distance \(1 \mathrm{~m}\) apart in vacuum. Then, the electric force between them \((\) in \(N)\) isTS EAMCET 2008 Easy
- Consider a particle is moving with a minimum speed \(v\) at highest point of vertical circle of radius \(R\). If the radius of the circle doubled the corresponding minimum speed will beTS EAMCET 2020 Easy
- A \(750 \mathrm{~kg}\) boat is \(10 \mathrm{~m}\) long and is floating without motion on still water. A man of mass \(80 \mathrm{~kg}\) is at one end and if he runs to another end of the boat and stops, the displacement of boat isTS EAMCET 2021 Medium
- A body starts from rest with uniform acceleration. If its velocity after \(\mathrm{n}^{\text {th }}\) second (last second) is ' \(\mathrm{V}\) ' then its displacement in the last two seconds isTS EAMCET 2023 Medium
More PYQs from TS EAMCET
- 1000 spherical drops of water each \(10^{-8} \mathrm{~m}\) in diameter coalesce to form one large spherical drop. The amount of energy liberated in this process (in joule) is (surface tension of water is \(0.075 \mathrm{~N} / \mathrm{m}\) ).TS EAMCET 2015 Easy
- Estimate the magnitude of current that passes through a wire, if of electrons flow through it in . (Assume Avogadro number )TS EAMCET 2019 Easy
- The work done to assemble the three charges in a configuration as shown in the figure below is
TS EAMCET 2018 Medium - A metal disc of radius rotates with a constant angular speed of about its axis. The potential difference between the centre and the rim of the disc under a uniform magnetic field directed perpendicular to the disc, isTS EAMCET 2019 Medium
- A car of mass \(1200 \mathrm{~kg}\) (together with the driver) is moving with a constant acceleration of \(2 \mathrm{~m} / \mathrm{s}^2\). How much power does the engine generate at the instance, when the speed reaches \(20 \mathrm{~m} / \mathrm{s}\) ? (Assume that the coefficient of friction between the car and the road is 0.5 ).TS EAMCET 2018 Easy
- A bar magnet has coercivity \(4 \times 10^3 \mathrm{Am}^{-1}\). It is placed inside a solenoid of \(12 \mathrm{~cm}\) length and 60 turns. The current that should be passed through the solenoid to demagnetise the bar magnet isTS EAMCET 2023 Hard