The molecular weight of nitrous oxide, NO, is 30.006 a. m.u., and the molecular weight of carbon monoxide, CO, is 28.01 a. m.u., so NO diffuses CO. (at the same rate as/faster than/slower than)

slower than

Explanation:

The molecular weight of nitrous oxide, NO, is 30.006 a.m.u., and the molecular weight of carbon monoxide, CO, is 28.01 a.m.u., so NO diffuses slower than CO.

According to Graham's law, the rate of diffusion of gases is inversely proportional to the square roots of their respective molecular weights. In order words, the higher the molecular weight of a gas, the lower the rate of diffusion of the gas.

Hence, provided the temperature of diffusion is equal, NO with a molecular weight of 30.006 a.m.u will diffuse slower than CO with 28.01 a.m.u.

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