Chemistry Problem?

Question

Assume there are 2 identical rubber rafts at the same temperature, inflated to exactly the same volume. One was filled with an air compressor and contains mostly N2. The other was inflated with the use of a container of compressed Carbon dioxide (CO2). Both have a pinhole leak of the same size. Which raft will deflate faster?

Answer 1

The mass of N2 is 28 while the mass of CO2 is 44. The gas with the lighter mass will diffuse faster, so the one with N2 will go flat first.