MCQ
Entropy of a thermodynamic system does not change when this system is used for
  • A
    Conduction of heat from a hot reservoir to a cold reservoir
  • B
    Conversion of heat into work isobarically
  • C
    Conversion of heat into internal energy isochorically
  • Conversion of work into heat isochorically

Answer

Correct option: D.
Conversion of work into heat isochorically
(d) Entropy of a reversible process does not change.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A sphere and a cube of same material and same volume are heated upto same temperature and allowed to cool in the same surroundings. The ratio of the amounts of radiations emitted will be
Silver and copper voltameter are connected in parallel with a battery of e.m.f. $12 V$. In 30 minutes, $1 gm$ of silver and $1.8 gm$ of copper are liberated. The power supplied by the battery is
An eye specialist prescribes spectacles having a combination of convex lens of focal length $40 \mathrm{~cm}$ in contact with a concave lens of focal length $25 \mathrm{~cm}$. The power of this lens combination in diopters is
An artificial satellite moving in a circular orbit around the earth has a total (kinetic + potential) energy $E_0$. Its potential energy is
A string of length $L$ and mass $M$ hangs freely from a fixed point. Then the velocity of transverse waves along the string at a distance $x$ from the free end is
In the Bohr's hydrogen atom model, the radius of the stationary orbit is directly proportional to ( $n=$ principle quantum number)
If time of flight of a projectile is 10 seconds. Range is 500 meters. The maximum height attained by it will be
A cell of emf $90\,V$ is connected across series combination of two resistors each of $100\,\Omega$ resistance. A voltmeter of resistance $400\,\Omega$ is used to measure the potential difference across each resistor. The reading of the voltmeter will be $.........\,V$
A wire of length $L$ $metre$ carrying a current of $I$ $ampere$ is bent in the form of a circle. Its magnitude of magnetic moment will be
Two galvanometers $A$ and $B$ require $3\,mA$ and $5\,mA$ respectively to produce the same deflection of $10$ divisions. Then