Two Perfumes: Which Will You Smell First?
Which perfume will you smell first and why? If you smell the first perfume in 15 seconds, how long will it take for you to smell the second perfume?
Perfume B will be smelled first due to its lighter molecules. It will take less than 15 seconds to smell perfume B.
Comparison of Perfume A and Perfume B
Perfume B: Molecules have a mass lighter than 275 amu. Based on the given information, we can determine which perfume you will smell first by comparing their molecular masses. Perfume A has a molecular mass of 275 amu, while perfume B's molecular mass is not provided. However, we can assume that perfume B has a smaller molecular mass than perfume A, as lighter molecules tend to move faster. Using the kinetic theory of gases, we know that lighter molecules will have a higher average speed compared to heavier molecules at the same temperature. This means that perfume B will reach your nose first, as its molecules will be able to diffuse through the air and travel the 7.5 meters faster than perfume A's molecules. Given that you smell perfume A in 15 seconds, it is difficult to determine exactly how long it will take for you to smell perfume B without knowing its molecular mass or any other factors that may affect the diffusion rate. However, we can conclude that it will take less than 15 seconds for you to smell perfume B.