confused about this one.
2 samples of water of equal volume are put into dishes and kept at room temp for several days. the water in the first dish is completely vaporized after 2.8 days while the water in the second dish takes 8.3 days to completely evaporate. What can you conclude about the two dishes?
This one is confusing me because both are water in the same enviornment but different evap. times?? So the water shouldn't be water?
Help me out!
thanks
Wouldn't surface area matter? One could be in a long neck tube vase, the other in an evaporating dish.
Jeez, I didn't think about that...
No worries! It's great that you're thinking critically about the problem. You're correct that surface area can have an impact on the rate of evaporation. It's possible that the dishes have different shapes or sizes, which could explain the difference in evaporation times.
To further analyze the situation, we can consider the factors that affect the rate of evaporation. The rate of evaporation depends on factors such as temperature, humidity, surface area, and air movement. Since the dishes were kept at room temperature and in the same environment, let's assume that temperature and humidity are constant and are not contributing to the difference in evaporation times.
Given that the volume of water in the two dishes was the same, we can reasonably assume that the only remaining factor to consider is the surface area. A larger surface area would result in faster evaporation, while a smaller surface area would lead to slower evaporation.
Therefore, it is likely that the dish in which the water evaporated faster had a larger surface area exposed to the surrounding air compared to the other dish. This could be due to differences in the shape or size of the dishes.