two students carried out an investigation in which they measured the evaporation rate of water under…

two students carried out an investigation in which they measured the evaporation rate of water under different conditions. the following table summarizes their findings.\nevaporation rate of water\n| beaker number | 1 | 2 | 3 | 4 | 5 |\n|--|--|--|--|--|--|\n| temperature (°f) | 55 | 65 | 75 | 85 | 95 |\n| starting volume (ml) | 45 | 50 | 50 | 55 | 45 |\n| final volume (ml) | 30 | 30 | 20 | 15 | 10 |\n| water lost (ml) | 15 | 20 | 30 | 40 | 35 |\n| elapsed time (hours) | 24 | 24 | 24 | 24 | 24 |\nthe students concluded that water evaporates most quickly at 85°f.\nwhy would a scientist question the validity of this conclusion?

two students carried out an investigation in which they measured the evaporation rate of water under different conditions. the following table summarizes their findings.\nevaporation rate of water\n| beaker number | 1 | 2 | 3 | 4 | 5 |\n|--|--|--|--|--|--|\n| temperature (°f) | 55 | 65 | 75 | 85 | 95 |\n| starting volume (ml) | 45 | 50 | 50 | 55 | 45 |\n| final volume (ml) | 30 | 30 | 20 | 15 | 10 |\n| water lost (ml) | 15 | 20 | 30 | 40 | 35 |\n| elapsed time (hours) | 24 | 24 | 24 | 24 | 24 |\nthe students concluded that water evaporates most quickly at 85°f.\nwhy would a scientist question the validity of this conclusion?

Answer

Brief Explanations:

The starting volumes of water in the beakers are not consistent. Also, the elapsed time is the same for all, but other factors like surface - area to volume ratio might not be controlled. These uncontrolled variables can affect the evaporation rate and thus question the conclusion.

Answer:

The starting volumes of water are different and other variables may not be controlled.