CHAPTER 3 > QUICK ACCESS > PAGE 5
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9 | Cold water in drinking bottle, sitting in warm room |
Description | Very cold water is poured into a drinking bottle which is insulated. A magnetic stirrer is used to make sure the water is always well mixed. It is left standing to warm up.The temperature of the water and of the environment are recorded as functions of time. |
Photographs | Heating_Cold_Water_2.gif |
Movies | Heating_Water |
Data files | Heating_Water.xls |
Models | Heating_Water.stm |
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10 | Dynamics of thermometers |
Description | Two experiments are performed to determine the dynamic response of stainless steel temperature probes to sudden changes of temperature in the environment. (1) A thermometer is in air at room temperature. Then it is placed in hot water for a while whereupon it is taken out, dried and left exposed to the air again. (2) Two equal temperature probes are in cool water. The they are both put in hot water. After a little while, one of them is taken out and put back in the cool water again whereas the other one is left if the body of hot water. |
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Movies | |
Data files | Thermometer_Response.xls |
Models | |
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11 | Two bodies in thermal contact |
Description | Experiment 1: Hot water is poured into one of two compartments of a well insulated container. Cold water is poured into the other part separated only by a thin metal wall. A magnetic stirrer is used to make sure the water is always well mixed in both parts. The temperatures of the water in the two compartments are recorded.Experiment 2: A small cylindrical conainer is placed inside a larger cylindrical container. Cold water is poured into the smaller vessel, hot water is poured into the larger one. The vessels are not specially insulated except for bottom and top (lid). Temperatures of the two bodies of water and of the environment are taken as functions of time. |
Photographs | Equilibration_1.gif |
Movies | Thermal_Equilibration_1 |
Data files | Thermal_Equilibration_1.xls |
Models | Thermal_Equilibration_1.stm |
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12 | Copper cylinder in hot water |
Description | A cold copper cylinder is submersed in hot water. The water is inside a glass container inside a heavily insulated cylindrical container. A magnetic stirrer is used to make sure the water is always well mixed.The temperatures of the water and of the inside of the copper cylinder are recorded as functions of time. |
Photographs | |
Movies | Copper_in_Water.mov |
Data files | Copper_in_Water.xls |
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