# Heat and Energy Transfer

Satisfactory Essays
401 Words
Grammar
Plagiarism
Writing
Score
Heat and Energy Transfer
Vocabulary:
• Conduction- the passage of energy, particularly heat or electricity, through something
• Rate of Change- the ratio of the difference in values of a variable during a time period to the length of that time period
• Calorimeter- an apparatus for measuring the amount of heat given out or taken in during a process such as combustion or change of state. The measurements are often made by observing the amount of solid liquefied, or liquid vaporized, under set conditions.
• Conservation of Energy- the principle that the amount of energy in an isolated system remains the same, even though the form of energy may change
Data: See Data Sheet
Discussion Questions:
1. At the start, the cold cup had the most potential energy.
2. The hot cup lost the most energy.
3. The hot cup was a heat source.
4. The heat energy flowed from the hot cup to the cold cup
5. The hot cup was transferring most of its energy into the cold cup.
6. While the cup with hot water was loosing energy, the cup with cold water was gaining energy.
7. My graph shows that there is a change in the rate of the heat lost or gained as time passed because it showed the indirect relationship between the cold cup gaining energy as the hot cup lost energy.
8. The rate of heat loss from the hot cup decreased during the experiment.
9. If the experiment were left standing for 24 hours, the temperatures of both of the cups will eventually go back to be the temperature of the air in the room.
10. I would modify the equipment to increase the rate of heat transfer from the hot cup to the cold cup by putting a container over the cups so the heat lost to the air could be decreased and more of that energy could be transferred directly into the cold cup.
11. There is a change in rate of energy exchange as time passes because at one point the heat from the hot cup can be lost faster than at a different point.
Conclusion:
The heat of the energy is transferred into the cold cup through the

## You May Also Find These Documents Helpful

• Powerful Essays

A coffee cup calorimeter is an apparatus that is used to measure the quantity of thermal energy gained or lost in a chemical reaction. This experiment utilizes this apparatus, which is made from two styrofoam cups with plastic lids and a thermometer, to measure changes in thermal energy of various reactions. When using this type of apparatus, it is assumed that no heat is transferred between the calorimeter and the surroundings, and that no heat is absorbed or released by the cup. This allows for determination of enthalpy change, which will then allow for the calculation of heat absorbed or released.…

• 2683 Words
• 12 Pages
Powerful Essays
• Satisfactory Essays

The heat flow is expected to flow out of the cup into the surrounding because temperature of the cup is more than its surroundings.…

• 274 Words
• 2 Pages
Satisfactory Essays
• Better Essays

While waiting on the water to boil, retrieve a piece of unknown metal to be identified and record its ID letter and its mass. Once the mass of the unknown metal is recorded, put the metal into the boiling water. While waiting on the water and the metal to achieve the same thermal equilibrium, get a coffee cup and measure its mass. Then pour about 50mL of water into a coffee cup, measure the mass of the water and the coffee cup and then determine the mass of the water alone (mass of water and coffee cup – mass of coffee cup). Record the temperature of the boiling water on the hot plate with the metal and then record the temperature of the water in the coffee cup before adding the metal. Use the string attached to the metal to transfer the metal from the hot water bath to the calorimeter. Using a piece of cardboard to cover the top of the calorimeter, record the temperature of the water in the calorimeter. Repeat the experimental procedure three more…

• 1030 Words
• 5 Pages
Better Essays
• Good Essays

Since the mass of cold water (100g) is less than the mass of hot water (200g) the temperature change of cold water is greater than hot water.…

• 1398 Words
• 6 Pages
Good Essays
• Satisfactory Essays

First we chose an unknown metal, in which our unknown was unknown metal 2, the metal was gray and irregular shaped. We setup the calorimeter and got a mass of it just being empty then we got a mass with 30mls of water in it. We found the mass of the water by subtracting the mass of the empty calorimeter which was 49.987g and the mass of the calorimeter with water which was 87.332g and got the mass of just the water 37.345g. The metal was placed in a test tube 5cm high and we got the mass of the empty test tube that was 42.703g and then with the metal in it and it was 72.607g. We heated the 300ml of water to a boil, then placed the metal that was in a tube and waited 10 minutes before we took it out. The temperature of the water before the metal was placed was 20 degrees Celsius, when we put the hot metal into the water and stirred it with the stirring rod it was 29 degrees Celsius, the change of the temperature after the metal was placed was 9 degrees. We ran this experiment twice to compare the results. In the second experiment we found that the mass of the calorimeter and water with 50mls was 100.033g and the empty calorimeter was 50.857g. We subtracted them two and we got the mass of water was 49.176g. The temperature of the water before the metal was placed in was 21 degrees Celsius and then when the metal was heated up for 10 minutes the temperature went up to 28 degrees Celsius. The change in temperature in the second trial was 7 degrees Celsius.…

• 601 Words
• 3 Pages
Satisfactory Essays
• Good Essays

Likewise, the mug that will lose heat the fastest will be the plastic mug with no lid.…

• 557 Words
• 3 Pages
Good Essays
• Good Essays

We rinsed all glassware three times with deionized water then we chilled 200mL of deionized water with ice and heated 200mL of deionized water on a hot plate. We measured out 50.0mL of chilled deionized water into a graduated cylinder. We measured and recorded the mass of the empty calorimeter, and then we added the 50.0mL of chilled deionized water and recorded the mass of the calorimeter with the chilled deionized water. We added the magnetic stirrer to the calorimeter and turned on the stirrer to a slow stirring rate. We placed a temperature probe in the calorimeter and placed the lid on the calorimeter. We then measured out 50.0mL of heated deionized water into a graduated cylinder and placed a temperature probe in the graduated cylinder. We recorded the initial temperatures of the chilled and heated deionized water. We added the heated…

• 2424 Words
• 10 Pages
Good Essays
• Good Essays

The heat that is absorbed (qsoln) should be equal but the opposite sign to the heat lost by the calorimeter (qcal¬), which is shown in the equation…

• 377 Words
• 2 Pages
Good Essays
• Good Essays

Energy go if it does not go into heating up the substance? If a substance is changing from a…

• 1310 Words
• 6 Pages
Good Essays
• Good Essays

1. Pour warm water in the bowl on the left, cold water in the bowl on the right, and room temperature water in the bowl in the middle. Room temperature water should be around 20-22°C.…

• 988 Words
• 4 Pages
Good Essays
• Satisfactory Essays

B. What happens to the temperature of Beaker B over time? Beaker b goes up.…

• 837 Words
• 4 Pages
Satisfactory Essays
• Better Essays

Continue to record the temperature every 30s for at least 5 minutes. Whenever the readings are being taken, occasionally swirl the water in the cup to assure uniform temperature. Stop taking readings when a constant decrease in temperature is noted for 4consecutive readings.…

• 1287 Words
• 6 Pages
Better Essays
• Powerful Essays

Apply concepts of temperature and heat as energy to solve problems concerning the transfer of heat and effects of heat on systems.…

• 2190 Words
• 9 Pages
Powerful Essays
• Satisfactory Essays

A roller coaster is operated and designed through the application of Physics. The law of Conservation of Energy governs the changes in a coaster 's speed and height. Simply put, the higher an object is off the ground, the more potential energy it has - that is, potential to gain speed as it falls. As it falls toward the ground, that potential energy changes to kinetic energy, or energy of motion. The sum of the two types of energy is constant, but a roller coaster must maintain an adequate balance of potential and kinetic energies to deliver a thrilling ride.…

• 2401 Words
• 10 Pages
Satisfactory Essays
• Good Essays

Which sample of water has a greater amount of thermal energy? The bathtub. Even though the avg. kinetic energy of the particles in the coffee cup is higher than the avg.KE of the particles in the bathtub, the thermal energy in the warm bath tub is higher because there are more particles in the tub than the cup.…

• 7846 Words
• 32 Pages
Good Essays