Mixing Waters By: Zac G, Luke G, Ryan C. Procedure 1. Fill three graduated cylinders with 50mL of room temperature water. 2. Heat 50mL of water until.

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Presentation transcript:

Mixing Waters By: Zac G, Luke G, Ryan C

Procedure 1. Fill three graduated cylinders with 50mL of room temperature water. 2. Heat 50mL of water until the water reaches 80 degrees Celsius. 3. Measure out 50mL of cold water and put into it three ice cubes. 4. Add the 80 degree water to the room temperature water. Add ice water to the other. 5. Record the temperature of the mixed waters.

Purpose Our purpose was to find out how energy is transferred between two different liquids.

Question If you took room temperature water and mixed it with 80 degrees water, what would the new temperature be?

IV & DV Our IV is the temperature. And our DV was the temperature of the mixed water.

Levels of IV Room Temperature 80 degrees Celsius Ice water 1 trial (Control)

Constant Our constants included the same source of water, the same ice, and the same equipment.

Hypothesis When you add two liquids of different temperature together, you will get the average of the two liquids.

Conclusion In our experiment, our results showed that when we mixed hot water (80 degrees C) with cold water (4.2 degrees C) we got a mixed temperature of 41.1 degrees C. It also showed that when we mixed room temperature water (21.5 degrees C) with the hot water (80 degrees C) we got temperature of 46.5 degrees C. Then, when we mixed the normal water with the cold water we got a temperature of 41.1 degrees C. Finally, when we mixed all 3 we got a temperature of 27.9 degrees C. Before we started this experiment, we thought that when you added to liquids together, you would get the average temperature of the two. We were mistaken though because we put the water into glass beakers which absorbed some of the thermal energy meaning that the temperature would go up higher than expected. Our results showed that when we added two liquids together we would get the average temperature of the two. The thermal energy from the water would transfer into the glass beaker, lowering the temperature of the water. This shows that when you add two liquids together, the temperature will always be a little less than the average of the two, taking into consideration the factors above.

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