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5 | Entropy production in electric heating |
Description | An electric immersion heater is placed in cold water. When it is operated at constant electric power, the temperature of the water rises. |
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6 | Heating water in well-insulated container |
Description | Water is heated electrically in an almost perfectly insulated container. The temperature of the liquid is monitored, and the power of the electric heater is measured. |
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7 | Heating glycol in well-insulated container |
Description | Glycol is heated electrically in an almost perfectly insulated container. The temperature of the liquid is monitored, and the power of the electric heater is measured. |
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8 | Cooling hot water in thin-walled aluminum container |
Description | Hot water is poured into a thin-walled polished aluminum can. A magnetic stirrer is used to make sure the water is always well mixed. The water is left standing to cool. The temperature of the water and of the environment are recorded as functions of time. |
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