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The Effect of Liquid Type on Evaporation Rate

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Anna Claire J.

on 19 December 2013

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Transcript of The Effect of Liquid Type on Evaporation Rate

The Effect of Liquid Type on Evaporation Rate
Introduction
The goal of this experiment was to determine which common household liquid evaporated the fastest under normal conditions.

This is relevant to consumers who regularly purchase household liquids and beverages because evaporation effects our food and drink.

Hypothesis: If acetone free nail polish remover is exposed to room room temperature air, then it will evaporate faster than water, regular nail polish remover, rubbing alcohol, and saline water.

The researcher's original hypothesis could not be proven or disproven due to complications. When acetone nail polish remover was measured and poured into containers, the plastic containers melted.
Research
Evaporation is the conversion of a liquid or solid to its vapor state
It may occur either at room temperature or at elevated temperatures
Evaporation happens at the surface of liquids
It is different from boiling because it can occur at a range of temperatures, whereas boiling is limited to boiling temp. or higher
Evaporation of a solid directly into a vapor with no liquid transition is called sublimation
Evaporation is a key component of the water cycle
Water molecules escape the ocean, later forming clouds (water vapor) and is put back into the ocean through precipitation
Evaporation absorbs heat
Factors that effect evaporation include temp., humidity, surface area, and pressure.
Bibliography
Works Cited
Experimental Design
The independent variable (IV) of this experiment was the type of liquid being tested
The levels of Independent Variables (IV) of this experiment were water, grape juice, coffee, and Gatorade G2.
The Dependent Variable (DV) is the amount of liquid that has evaporated over the course of five days.
Constants: type of container, amount of liquid, time period, temperature.
Control: Water
# of Trials: 5
Materials
Grape juice 250 mL
Water 250 mL
Coffee 250 mL
Fruit Punch G2 250 mL
20 waxed paper cups
Graduated cylinder
Black Sharpie marker
Table.
By Anna Claire Jurman
Block A3 - 12.16.13

Hurd, Will.
Changing States: Solids, Liquids, and Gases.
Chicago, IL: Heineman Library, 2009. Print.

Perlman, Howard. "The Water Cycle: Evaporation." ,
from USGS Water-Science School.
USGS, 14 Aug. 2013. Web. 20 Nov. 2013

Walton, Harold F. "Evaporation."
Grolier Online
. Encyclopedia Americana, 2013. Web. 20 Nov. 2013. <http://go.grolier.com/>
Procedure
Step 1- Using the black Sharpie marker the waxed paper cups were labeled with the type of liquid that would be poured into them
Step 2- 50 mL of grape juice was measured with a graduated cylinder and poured into a wax paper cup labeled “Grape Juice”

This step was repeated four more times until all five cups labeled “Grape Juice” were filled, and was repeated for coffee, Fruit Punch G2, and water.

Step 3- The cups were placed on a table, uncovered, for four days and eighteen hours
Step 4- The post-evaporation liquids were measured individually
Step 5- Results were recorded and averaged.

Results were measured in mL.
Results

The results of the project 'The Effect of Liquid Type on Evaporation Rate' are summarized in Table 1 and shown in Table A. Coffee evaporated the fastest, at a rate of 5.08 mL per day. The amount of coffee left after 5 days of evaporation had a maximum measurement of 26 mL, a minimum of 23 mL, a median of 25 mL, and a mode of 25 mL. Gatorade G2 after evaporating for 5 days had a maximum measurement of 26 mL, a minimum of 24 mL, a median of 25 mL, and a mode measurement of 24.5 mL. Next came grape juice, with a maximum post-evaporation measurement of 26 mL, a minimum of 24.5 mL, a median of 25 mL, and a mode measurement of 25 mL. Finally, water had a maximum post-evaporation measurement of 28 mL, a minimum of 26 mL, a median of 26 mL, and a mode of 26 mL. All liquids evaporated at very similar rates, ranging from 4.64 mL per day (water) to 5.08 mL per day (coffee). The Gatorade G2 had slightly less accurate measurements than other liquids. This is due to leakage that occurred in all five G2 trials.

Data Summary
Discussion
Interpretation- What do your results mean?

The results of this experiment show that coffee has a faster evaporation rate than other beverages. The other beverages were water, Gatorade G2, and grape juice. Water evaporated much slower than the other liquids.
Comparison
The experimenter did not find any research that compared coffee evaporation to other beverages.
Hypothesis
The original hypothesis could not be confirmed or refuted.
Discussion
Reflection
This experiment included discoveries and results unexpected by the researcher:
When poured into the plastic cups, the 100% acetone nail polish remover melted the cups
Gatorade G2 was the only liquid beverage that leaked through the waxed paper cups
Future
In the future, if this experiment were to be repeated, the following changes should be made:
Glass containers in replacement of plastic or paper cups. This would prevent the damage of containers being used. (specifically, damage caused by chemical liquids.
More exact pre-evaporation measurement method(such as using graduated cylinders)
Discussion (Continued)
Problems
When poured into the plastic cups, the 100% aacetone nail polish remover melted the cups
The Gatorade G2 leaked through the waxed paper cups, resulting in slightly less accurate results in all 5 trials

These errors do not reflect upon or explain the results of this experiment.
Full transcript