JEE Advanced 2020Paper 1
- Exam
- JEE Advanced
- Year
- 2020
- Paper
- Paper 1
- Subject
- Chemistry
- Chapter
- States of Matter
JEE Advanced 2020 · Paper 1 · Chemistry · States of Matter
If the distribution of molecular speeds of a gas is as per the...
If the distribution of molecular speeds of a gas is as per the figure shown below, then the ratio of the most probable, the average, and the root mean square speeds, respectively, is
Options
- A
- B
- C
- D
Correct answer
B.
Step-by-step solution
Due to symmetrical graph given, the average value of velocities will be at the middle, symmetrical velocity
which is also most probable velocity.
While calculating rms speed, we have to take average of square of speeds and its root. In square of
speeds, higher speeds will give more contribution so the value will be more than the average value.