139288 The volume of a gas and the number of molecules within that volume for three situations are (1) $2 \mathrm{~V}_{0}$ and $\mathrm{N}_{0}$ (2) $3 \mathrm{~V}_{0}$ and $3 \mathrm{~N}_{0}$ (3) $3 \mathrm{~V}_{0}$ and $9 \mathrm{~N}_{0}$. The situations are ranked according to the mean free path (greatest first) as

139289 The root mean square speed of Hydrogen gas molecule at $300 \mathrm{~K}$ is $1920 \mathrm{~m} / \mathrm{s}$. What is the rms speed of oxygen gas molecules at the same temperature? (Answer in MKS units).

139290 Find the order of root mean square (r.ms.) velocity of molecules of a gas, if the velocity of sound in the same gas is $330 \mathrm{~m} / \mathrm{s}$. $(\gamma=1.41)$

139291 The speed of some molecules, in a gas, is as given below:
5.0,3.0,2.0,4.0,5.0,7.0,2.0,4.0,7.0 $\left(\times 10^{6} \mathrm{~m} / \mathrm{s}\right)$
The rms speed of the above is near to

139288 The volume of a gas and the number of molecules within that volume for three situations are (1) $2 \mathrm{~V}_{0}$ and $\mathrm{N}_{0}$ (2) $3 \mathrm{~V}_{0}$ and $3 \mathrm{~N}_{0}$ (3) $3 \mathrm{~V}_{0}$ and $9 \mathrm{~N}_{0}$. The situations are ranked according to the mean free path (greatest first) as

139289 The root mean square speed of Hydrogen gas molecule at $300 \mathrm{~K}$ is $1920 \mathrm{~m} / \mathrm{s}$. What is the rms speed of oxygen gas molecules at the same temperature? (Answer in MKS units).

139290 Find the order of root mean square (r.ms.) velocity of molecules of a gas, if the velocity of sound in the same gas is $330 \mathrm{~m} / \mathrm{s}$. $(\gamma=1.41)$

139291 The speed of some molecules, in a gas, is as given below:
5.0,3.0,2.0,4.0,5.0,7.0,2.0,4.0,7.0 $\left(\times 10^{6} \mathrm{~m} / \mathrm{s}\right)$
The rms speed of the above is near to

139288 The volume of a gas and the number of molecules within that volume for three situations are (1) $2 \mathrm{~V}_{0}$ and $\mathrm{N}_{0}$ (2) $3 \mathrm{~V}_{0}$ and $3 \mathrm{~N}_{0}$ (3) $3 \mathrm{~V}_{0}$ and $9 \mathrm{~N}_{0}$. The situations are ranked according to the mean free path (greatest first) as

139289 The root mean square speed of Hydrogen gas molecule at $300 \mathrm{~K}$ is $1920 \mathrm{~m} / \mathrm{s}$. What is the rms speed of oxygen gas molecules at the same temperature? (Answer in MKS units).

139290 Find the order of root mean square (r.ms.) velocity of molecules of a gas, if the velocity of sound in the same gas is $330 \mathrm{~m} / \mathrm{s}$. $(\gamma=1.41)$

139291 The speed of some molecules, in a gas, is as given below:
5.0,3.0,2.0,4.0,5.0,7.0,2.0,4.0,7.0 $\left(\times 10^{6} \mathrm{~m} / \mathrm{s}\right)$
The rms speed of the above is near to

139288 The volume of a gas and the number of molecules within that volume for three situations are (1) $2 \mathrm{~V}_{0}$ and $\mathrm{N}_{0}$ (2) $3 \mathrm{~V}_{0}$ and $3 \mathrm{~N}_{0}$ (3) $3 \mathrm{~V}_{0}$ and $9 \mathrm{~N}_{0}$. The situations are ranked according to the mean free path (greatest first) as

139289 The root mean square speed of Hydrogen gas molecule at $300 \mathrm{~K}$ is $1920 \mathrm{~m} / \mathrm{s}$. What is the rms speed of oxygen gas molecules at the same temperature? (Answer in MKS units).

139290 Find the order of root mean square (r.ms.) velocity of molecules of a gas, if the velocity of sound in the same gas is $330 \mathrm{~m} / \mathrm{s}$. $(\gamma=1.41)$

139291 The speed of some molecules, in a gas, is as given below:
5.0,3.0,2.0,4.0,5.0,7.0,2.0,4.0,7.0 $\left(\times 10^{6} \mathrm{~m} / \mathrm{s}\right)$
The rms speed of the above is near to