Calculate the root-mean-square speed of methane, ch4 (g), at 78°c. root mean square speed = u = [3rt/(molar mass) ] ^ (1/2) think about which r you are going to use and make sure to show the units!

Answer : The root-mean-square speed of methane gas is, 739.7 m/s

Solution :

Formula used :

where,

= root mean square speed

R = gas constant =

T = temperature of gas =

M = molecular weight of methane = 16 g/mole = 0.016 Kg/mole (1 Kg = 1000 g)

Now put all the given values in the above formula, we get the rms speed.

Therefore, the root-mean-square speed of methane gas is, 739.7 m/s

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