Why does a glass filled with a cold beverage seem to sweat? a. saturation always results in sweat on wet object. b. the cold glass adjacent air to saturation, which is followed by condensation of water vapor. c. when cold, water molecules can move through tiny pores in the glass. d. evaporation of the beverage cools the glass and condensation of water from evaporated beverage follows.
The cold glass cools adjacent air to saturation, which is followed by condensation of water vapor.
The correct answer is b. The cold glass adjacent air to saturation, which is followed by condensation of water vapor.
When a glass is filled with a cold beverage, the temperature difference between the cold liquid and the surrounding air causes the air near the glass to cool down. As the temperature of the air decreases, its ability to hold moisture decreases as well. This is called the saturation point.
When the air near the glass reaches its saturation point, it can no longer hold all the moisture it contains in the form of water vapor. As a result, the excess moisture starts to condense and turns into liquid water, which appears as droplets on the surface of the glass. This is similar to how dew forms on grass in the early morning when the temperature drops.
This phenomenon is commonly referred to as "sweating" because it resembles the appearance of perspiration on a person's skin when they are experiencing physical exertion or high temperatures.
So, the correct answer is b. The cold glass causes the adjacent air to reach its saturation point, which leads to the condensation of water vapor and the appearance of "sweat" on the glass.