At what temperature would N 2 molecules have same average speed as C O molecules at 200 K .

Open MARKS Web Download App

Search any question & find its solution

Question: Answered & Verified by Expert

At what temperature would

N_{2}

molecules have same average speed as

C O

molecules at

200 K

.

ChemistryStates of MatterJEE Main

Options:

A $- 7 3^{o} C$
B $20 0^{o} C$
C $70 0^{o} C$
D none

Solution:

1312 Upvotes Verified Answer

The correct answer is:

- 7 3^{o} C

Average speed = \sqrt{\frac{8RT}{π M}}

Both

N_{2}

and

C O

have same molecular mass, So, for same average speed, temperature should be same

∴ T = 200 K= - 73^{o} C

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