Question
Assertion : In adiabatic compression, the internal energy and temperature of the system get decreased.
Reason : The adiabatic compression is a slow process

Answer

(d) Adiabatic compression is a rapid action and both the internal energy and the temperature increases.

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

Assertion : When a particle moves in a circle with a uniform speed, its velocity and acceleration both changes.
Reason : The centripetal acceleration in circular motion is dependent on angular velocity of the body.
Assertion : Magnetic moment of an atom is due to both, the orbital motion and spin motion of every electron.
Reason $\quad$ : A charged particle produces a magnetic field.
Assertion : The cross product of a vector with itself is a null vector.
Reason : The cross-product of two vectors results in a vector quantity.
Assertion : If the net external force on the body is zero, then its acceleration is zero.
Reason : Acceleration does not depend on force.
Assertion : Newton's rings are formed in the reflected system. When the space between the lens and the glass plate is filled with a liquid of refractive index greater than that of glass, the central spot of the pattern is dark.
Reason : The reflection is Newton's ring cases will be from a denser to a rarer medium and the two interfering rays are reflected under similar conditions.
Assertion : In isothermal process whole of the heat energy supplied to the body is converted into internal energy.
Reason : According to the first law of thermodynamics $\Delta Q=\Delta U+p \Delta V$
Assertion : Only a change in magnetic flux will maintain an induced current the coil.
Reason : The presence of large magnetic flux through a coil maintains a current in the coil if the circuit is continuous.
Assertion : Work done by a gas in isothermal expansion is more than the work done by the gas in the same expansion, adiabatically.
Reason : Temperature remains constant in isothermal expansion and not in adiabatic expansion.
Assertion : Only microwaves are used in radar.
Reason : Because microwaves have very small wavelength.
Assertion : We can measure the potential barrier of a $P N$ junction by putting a sensitive voltmeter across its terminals.
Reason : The current through the $P N$ junction is not same in forward and reversed bias.