The root mean square velocity of molecules of a gas whose density is 1.4 kg m^(-3) at a pressure of 76 cm of mercury (specific gravity of mercury=13.6 and g=9.81 ms^(-2) ) is

The root mean square velocity of molecules of a gas whose density is 1

1.	The root mean square velocity of molecules of a gas whose density is 1.4 kg m^(-3) at a pressure of 76 cm of mercury (specific gravity of mercury=13.6 and g=9.81 ms^(-2) ) is
Answer» `4.66 xx 10^(2) "MS"^(-1)` `2.5 xx 10^(2) "ms"^(-1)` `2.33 xx 10^(2) "ms"^(-1)` `6.66 xx 10^(2) "ms"^(-1)` Answer :A