The mean speed of the molecules of a hydrogen sample equals the mean speed of the molecules of a helium sample. Calculate the ratio of the temperature of the hydrogen sample to the temperature of the helium sample.

Answer

`1:2`

Explanation

`V_(mean) = sqrt((8RT)/(pim))`,
`sqrt((T_(1))/(M_(1))) = sqrt((T_(2))/(M_(2)))` or `sqrt((T_(1))/(T_(2))) = sqrt((M_(1))/(M_(2)))`
or `(T_(1))/(T_(2)) = (M_(1))/(M_(2)) = (1)/(2)`