Chemistry Question

Question

A helium balloon and a balloon filled with carbon dioxide are punctured with holes of the same size. At what speed does the helium effuse if the carbon dioxide effuses at a speed of 410. m/s?

Answer 1

Graham's Law of Effusion:

rate gas 1/rate gas 2 = √MW gas 2/√MW gas 1

gas 1 = CO₂ (MW = 44)

gas 2 = He (MW = 4)

410/x = √4/√44

410/x = 0.30

x = 1367 m/s