what is ratio of effusion rates of krypton and neon?

Answer 1

use grahm's eq of rate= sq root of the molar mass of the heavier gas/sq root of the molar mass of the lighter mass

since Kr is 83.8 while Ne is 20.179, so that'd be

rate= sq root 83.8/ sq root 20.179

solve for it using the calculator... whatever answer you'll get will equate to the number of time by which the lighter gas travels faster than the heavier gas

or in other words... Neon travels (the answer isyour calcu gives) times faster than Krypton

or in ratio form Neon:Krypton = (the answer your calcu gives) : 1

i hope that helps...