NTA Abhyas JEE Main2020ChemistryStates of MatterPractice
At what temperature would N 2 molecules have same average speed as C O molecules at 200 K .
Options
- A- 7 3 o C
- B20 0 o C
- C70 0 o C
- Dnone
Correct answer
A. - 7 3 o C
Step-by-step solution
Average     speed   =   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