if you opened a container of each gas in a corner of a large room, which odor would you detect first on the…

if you opened a container of each gas in a corner of a large room, which odor would you detect first on the other side of the room?\n○ h₂s\n○ nh₃\n○ cannot be determined

if you opened a container of each gas in a corner of a large room, which odor would you detect first on the other side of the room?\n○ h₂s\n○ nh₃\n○ cannot be determined

Answer

Brief Explanations:

According to Graham's law of effusion, the rate of diffusion of a gas is inversely proportional to the square - root of its molar mass. The molar mass of $H_2S$ is approximately $34\ g/mol$ ($2\times1 + 32=34$), and the molar mass of $NH_3$ is approximately $17\ g/mol$ ($14 + 3\times1 = 17$). Since $NH_3$ has a lower molar mass, it will diffuse faster.

Answer:

B. $NH_3$