Thermometric properties are characteristics of substances that change with temperature. These properties include length volume pressure and electrical resistance. They are used in thermometers to measure temperature. Different materials exhibit varying thermometric properties which can be calibrated to determine temperature accurately by observing changes in these physical quantities.
Thermal properties of matter study how matter responds to changes in temperature. These properties include specific heat capacity thermal expansion and thermal conductivity. Temperature affects the internal energy of substances which can lead to changes in their state or volume. Understanding these properties is essential for applications like heat engines and refrigeration systems.
A liquid thermometer is a type of thermometer that measures temperature through the expansion and contraction of a liquid in response to temperature changes. In general, the liquid is held within a sealed glass tube with a calibrated scale.
Advantages of using mercury
1. It has a very high boiling point and a low freezing point; thus, it can measure a wide range of temperatures.
2. It does not wet the glass, hence ensuring accurate readings.
3. Mercury expands uniformly with temperature changes, so it is very accurate.
4. It is visible because of its shiny, metallic appearance.
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