Calculate the r.m.s. the velocity of molecules of gas for which the specific heat at constant pressure is 6.84 cal per g mol per °C. The velocity of sound in the gas being 1300 ms-1 . R = 8.31 × 107 erg per g mol per °C. J = 4.2 × 107 erg cal-1 .
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Answered by
1
Explanation:
We know that the rms velocity is given as V
rms
=
2
M
3RT
We also know that increasing temperature will increase pressure so we just need to see the formula for temperature dependence and just apply above formula.
From above formula
v
2
v
1
=
2
T
2
T
1
=
2
127+273
27+273
=
2
4
3
so v
2
=
2
3
2v
1
=
3
400
m/s
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