Questions
Four molecules of a gas have speeds 1, 2, 3 and 4 km s-1. The value of the root mean square speed of the gas molecule is
a
1215kms−1
b
1210kms−1
c
2.5kms−1
d
15/2kms−1
detailed solution
Correct option is D
The rms speed =12+22+32+4241/2 =152kms−1Hence the correct choice is (d).Talk to our academic expert!
Similar Questions
If four molecules of a gas have speed 2, 4, 6, 8 kms-1 respectively, then root mean square speed (in kms-1) will be .. and respectively.
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