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Standard XII

Physics

Root Mean Square Speed

Two gases A...

Question

Two gases $A$ and $B$ having the same volume, effuse through an orifice in 30 and 10 seconds respectively. If the molar mass of $A$ is 162, the molar mass of gas $B$ will be :

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Solution

The correct option is A 18
If the gases have the same volume then

$\frac{t_{2}}{t_{1}} = \sqrt{\frac{M_{2}}{M_{1}}}$

$\frac{10}{30} = \sqrt{\frac{M_{2}}{162}}$

$M_{2} = 18$

Hence, the correct option is $A$

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Two gases A and B having the same volume, effuse through an orifice in 30 and 10 seconds respectively. If the molar mass of A is 162, the molar mass of gas B will be :

The correct option is A 18If the gases have the same volume thent2t1=√M2M11030=√M2162M2=18Hence, the correct option is A

Two gases $A$ and $B$ having the same volume, effuse through an orifice in 30 and 10 seconds respectively. If the molar mass of $A$ is 162, the molar mass of gas $B$ will be :

The correct option is A 18
If the gases have the same volume then

$\frac{t_{2}}{t_{1}} = \sqrt{\frac{M_{2}}{M_{1}}}$

$\frac{10}{30} = \sqrt{\frac{M_{2}}{162}}$

$M_{2} = 18$

Hence, the correct option is $A$