At room temperature, a diatomic gas is found to have an r.m.s speed of 1930 m s - 1 . The gas is :

Open MARKS Web Download App

Search any question & find its solution

Question: Answered & Verified by Expert

At room temperature, a diatomic gas is found to have an r.m.s speed of

1930 m s^{- 1}

. The gas is :

PhysicsThermodynamicsNEET

Options:

A $F_{2}$
B $C l_{2}$
C $H_{2}$
D $O_{2}$

Solution:

1135 Upvotes Verified Answer

The correct answer is:

H_{2}

v_{rms} = \sqrt{\frac{3 RT}{M}} \Rightarrow M = \frac{3 RT}{v_{rms}^{2}} = \frac{3 \times 8.3 \times 300}{{(1930)}^{2}} = 2 {g mole}^{- 1}

\Rightarrow H_{2}

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.

Use on iOS or Desktop Download from Google Play