Question

Assertion (A): Particle motion always increases with rise in the temperature.

Reason (R): Upon heating the kinetic energy of the particles increases and that leads to increase their motion.

• A. Both A and R are true and R is the correct explanation of A
• B. Both A and R are true and R is not correct explanation of A
• C. A is correct and R is incorrect
• D. A is incorrect and R is correct.

Answer 1

Answer: (A)

Both A and R are true and R is the correct explanation of A

$T\alpha KE$

$\therefore KE$ increases as $T$ increases.

$KE$ increases means vel. inccreases .

Hence motion increases.