Calculate the temperature at which the RMS velocity of a hydrogen molecule will be equal to the orbital velocity of earth's satelite (i.e., 8 km/s) (a) 514 x 103 k (b) 5.14 x 103 k (c) 51.4 x 103 k (d) 514 k

Vrms=under root (3KT/M) so 64 * 10^6 =3 *t * 8.31/0.02, here velocity is given in km/sec so multiplying it by 10^3we get 514*103 kelvin, that is first option.

Hence we get value of t as 51.343*1000. Which is approximately equal to a option Value of r= 8.31 and value of m should be 0.02kg