Water Energy Transfer Experiment

By: Luke Jasinski, Kyle Wishwanick, Kyle Mays, and last

but not least, Ryan Quitinsky

Purpose

• To find out how energy is transferred between two liquids.

Materials

• Water

• Temperature sensor

• Beakers

• Graduated Cylinder

• Alcohol lamp

• Burner stand

Independent Variable

• The independent variable is temperature.

Dependent Variable

• The dependent variable is the amount of water .

Constants

• Same amount of cold water

• Same temperature of hot water

• Same equipment

• Same liquids

Hypothesis

• As the amount of hot water goes down with the cold water (same amount) the temperature will go down.

Procedures

1. Add 50mL. of hot water in one beaker.

2. Add 50mL. of cold water in another beaker.

3. Mix them together and take the temperature.

4. Repeat 1-3 but use 35mL. of hot water.

5. Repeat 1-3 but use 20mL. of hot water.

Results

Temperature

(Cold Water)

Temperature

(Hot Water)

Temperature

(Mixed)

Amount of Water

21.7 80.0 49.1 50 ml

21.2 80.0 45.3 35 ml

21.9 80.0 39.8 20 ml

21.6 80.0 44.7 Average

Conclusion

• In our experiment we figured out that when the two beakers of water mixed, the hot water goes down while the cooler water goes up and the temperature goes down. This happened because when there was less cold water, the temperature was bigger then if there was more cool water. In our table, this shows when the temperature in the first column when the numbers were smaller, the third column’s numbers were smaller.