Question

In a gas $10$% molecules have a velocity of $2km/sec$ and $8$% molecules have a velocity of $1.5km/sec$ and $82$% molecules have a velocity $1km/sec$. The most probable velocity of molecules is:

• A. $1km/s$
• B. $1.5km/s$
• C. $2km/s$
• D. $15km/s$

Answer 1

The correct option is A $1km/s$

Given Data:-

$10$% molecules have $2$ km/sec

$8$% molecules have $1.5$ km/sec

$82$% molecules have $1$ km/sec

most probable velocity:-

The velocity of which most of the molecules of the gas travel is known as most probable velocity.

As $82$% molecules travel with a velocity of $1$ km/sec, the most probable velocity is $1$ km/sec.