U+ W=0 is valid for - Vidyadip

MCQ

$\Delta U+\Delta W=0$ is valid for

✓
Adiabatic process
B
Isothermal process
C
lsobaric process
D
Isochoric process

✓

Answer

Correct option: A.

Adiabatic process

(a) In adiabatic process $\Delta Q=0 \Rightarrow \Delta U+\Delta W=0$$(\because \Delta Q=\Delta U+\Delta W)$

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

Explore more

More "MCQ" from Thermodynamics→Thermodynamics — all question types→JEE physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

In the above Question, if the string $C$ is stretched slowly, then

A dip needle vibrates in the vertical plane perpendicular to the magnetic meridian. The time period of vibration is found to be $2$ seconds. The same needle is then allowed to vibrate in the horizontal plane and the time period is again found to be 2 seconds. Then the angle of dip is

A ball is projected vertically down with an initial velocity from a height of $20 \mathrm{~m}$ onto a horizontal floor. During the impact it loses $50 \%$ of its energy and rebounds to the same height. The initial velocity of its projection is

A cold soft drink is kept on the balance. When the cap is open, then the weight

A very small magnet is placed in the magnetic meridian with its south pole pointing north. The null point is obtained $20 \mathrm{~cm}$ away from the centre of the magnet. If the earth's magnetic field (horizontal component) at this point be $0.3$ gauss, the magnetic moment of the magnet is

Due to the flow of current in a circular loop of radius $R$, the magnetic field produced at the centre of the loop is $B$. The manetic moment of the loop is

A simple pendulum consisting of a ball of mass $m$ tied to a thread of length $l$ is made to swing on a circular arc of angle $\theta$ in a vertical plane. At the end of this arc, another ball of mass $m$ is placed at rest. The momentum transferred to this ball at rest by the swinging ball is

Spherical balls of radius ' $r$ ' are falling in a viscous fluid of viscosity ' $\eta$ ' with a velocity ' $v$ '. The retarding viscous force acting on the spherical ball is

If the density of a small planet is the same as that of earth, while the radius of the planet is 0.2 times that of the earth, the gravitational acceleration on the surface of that planet is

In a given process for an ideal gas, $d W=0$ and $d Q<0$. Then for the gas