Question

Which of the following gases would have a similar rate of effusion to CO at 350 K?

A. H2
B. NO2
C. CO2
D. N2
E. He

Answer 1

D) N2 would have a similar rate of effusion to CO at 350 K.

Step-by-step explanation:

The rate of effusion of a gas depends on its molar mass.

According to Graham's law of effusion, the rate of effusion of a gas is inversely proportional to the square root of its molar mass.

In this case, since we are looking for a gas with a similar rate of effusion to CO, we need to find a gas with a similar molar mass to CO.

CO has a molar mass of 28 g/mol.

Among the options given, N2 has the closest molar mass to CO, with a molar mass of 28 g/mol as well. Therefore, N2 would have a similar rate of effusion to CO at 350 K.