A) 516 m/s
B) 450 m/s
C) 310 m/s
D) 746 m/s
Correct Answer: A
Solution :
We know that rms speed is directly proportional in square root of temperature\[{{V}_{rms}}\times \sqrt{T}\] \[\frac{{{V}_{rms\,(1)}}}{{{V}_{rms\,(2)}}}=\sqrt{\frac{{{T}_{1}}}{{{T}_{2}}}}\] \[\frac{400}{{{V}_{rms\,(2)}}}=\sqrt{\frac{27+273}{273+273}}\] \[=\sqrt{\frac{300}{500}}\] \[{{V}_{rms\,(2)}}=\sqrt{\frac{500}{300}}\times 400\] \[=1.29\times 400=516.39\,m\text{/}s\]
You need to login to perform this action.
You will be redirected in
3 sec
