Question

room a: arctic (0°c)
room b: temperate (25°c)
room c: tropical (40°c)
they spray an equal amount of perfume in each room and measure how long the scent lingers.
in which room would you expect the perfume scent to disperse most quickly throughout the air, and why?
a. room a, because cold air holds scents longer.
b. room b, because moderate temperatures are ideal for scent dispersion.
c. room c, because higher temperatures increase the kinetic energy of scent particles.
d. all rooms will have the same rate of scent dispersion.

Explanation:

According to the kinetic - molecular theory of gases, the average kinetic energy of gas particles is directly proportional to the temperature of the gas. Higher temperature means higher kinetic energy. Perfume scent is made up of gas particles. In Room C (highest temperature among the three), the scent particles have the highest kinetic energy. This higher kinetic energy causes the particles to move more rapidly, leading to faster dispersion throughout the air.

Answer:

C. Room C, because higher temperatures increase the kinetic energy of scent particles.