Question:easy
If a gas is compressed isothermally then the r.m.s. velocity of the molecules
If a gas is compressed isothermally then the r.m.s. velocity of the molecules
Show Hint
The r.m.s. speed depends only on temperature.
Updated On: Oct 1, 2026
- increases
- remains the same
- decreases
- first increases and then decreases
Show Solution
The Correct Option is B
Solution and Explanation
Step 1: Link to temperature
Average kinetic energy per molecule is $\frac32kT$. If $T$ is fixed, so is the average $v^2$, and so is $v_{rms}$. Option (B).
Final Answer:
It stays the same. \[ \boxed{\text{(B)}\ \text{remains the same}} \]
Average kinetic energy per molecule is $\frac32kT$. If $T$ is fixed, so is the average $v^2$, and so is $v_{rms}$. Option (B).
Final Answer:
It stays the same. \[ \boxed{\text{(B)}\ \text{remains the same}} \]
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