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 wire is loaded by $6 \ kg$ at its one end, the increase in length is $12\  mm$. If the radius of the wire is doubled and all other magnitudes are unchanged, then increase in length will be
$f_v$ and $f_r$ are the focal lengths of a convex lens for violet and red light respectively and $F_v$ and $F_r$ are the focal lengths of a concave lens for violet and red light respectively, then
Substances in which the magnetic moment of a single atom is not zero, is known as
Two identical heaters rated $220$ volt,$1000$ watt are placed in series with each other across $220$ volt lines. If resistance do not change with temperature, then the combined power is
A stone is dropped from a certain height which can reach the ground in 5 second. If the stone is stopped after 3 second of its fall and then allowed to fall again, then the time taken by the stone to reach the ground for the remaining distance is
A heavy steel ball of mass greater than $1 \mathrm{~kg}$ moving with a speed of $2 \mathrm{~m} \mathrm{sec}^{-1}$ collides head on with a stationary ping-pong ball of mass less than $0.1 \mathrm{gm}$. The collision is elastic. After the collision the pingpong ball moves approximately with speed
A body, constrained to move in the $\gamma$-direction is subjected to a force given by $\vec{F}=(-2 \hat{i}+15 \hat{j}+6 \hat{k}) N$. What is the work done by this force in moving the body a distance $10 m$ along the $\gamma_{\text {-axis }}$
An X-ray has a wavelength of $0.010 \mathring A$. Its momentum is
Consider the following two statements $A$ and $B$ and identify the correct choice given in the answers Duddells thermo-galvanometer is suitable to measure direct current only Thermopile can measure temperature differences of the order of $10^{-3}{ }^{\circ} C$
If both the mass and the radius of the earth decrease by $1 \%$, the value of the acceleration due to gravity will