Kinetic Theory Of Gases Question 24
Question: If the molecules in a tank of hydrogen have the same RMS speed as the molecules in another tank of oxygen, we may be sure that
Options:
A) the pressures are the same
B) the hydrogen is at the higher temperature
C) the temperatures are the same
D) the oxygen is at the higher temperature
Show Answer
Answer:
Correct Answer: D
Solution:
[d] $ V _{rms}=\sqrt{\frac{3RT}{M}} $ Same $ V _{rms} $ , implies $ \frac{T}{M} $ same. Hence, $ \text{T}\propto M $ M for oxygen is more than that of hydrogen, therefore, oxygen is at higher temperature than hydrogen.