| | CONCEPTS OF THERMAL PROCESSES (2) |
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| | See Concept Map
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5 | When we increase the entropy in a body, the temperature rises (there is a relation between entropy and temperature). How it rises depends upon the type of capacitor. (This is true only if the body does not react to entropy in a different way; see 7.) |
6 | For entropy to flow through a conductor (such as a wall), the temperature (potential) at the inlet must be higher than at the outlet. The potential decreases in the direction of flow because of thermal resistance. The temperature difference is related to the flow. |
| 7 | Entropy can change other properties of materials—not just temperature. Substances can melt or evaporate (generally, undergo phase changes) or can expand (volume changes associated with entropy; in general, entropy increases the volume; water between 0°C and 4°C shrinks when heated). There are other effects as well such as change of magnetization. |
| 8 | Entropy can be transported or flow in three distinct ways: conductively (it flows through materials due to a temperature difference), convectively (it flows with a fluid since it is stored in that fluid), and radiatively (electro-magnetic radiation can contain entropy and so the entropy flows with the radiation = light). |
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