Question

Which of the following is greater for identical conditions and the same gas?

• A. most probable speed
• B. average speed
• C. root mean square speed
• D. most probable and average speed have the same value

Answer 1

Answer:

C. root mean square speed

According to the formula, the root mean square speed is greater than the average speed and the average speed is greater than the most probable speed at given identical conditions and for the same gas.