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Gallium is used as a pyrometric liquid. ...

Gallium is used as a pyrometric liquid. Why?

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**Step-by-Step Solution:** 1. **Understanding Pyrometric Liquids**: Pyrometric liquids are substances used in thermometers to measure high temperatures. They must remain liquid over a wide range of temperatures to be effective. 2. **Melting Point of Gallium**: Gallium has a melting point of approximately 29.76 °C (around 30 °C). This means that it can easily exist in a liquid state at room temperature. 3. **Boiling Point of Gallium**: The boiling point of gallium is about 2400 °C. This indicates that gallium can withstand very high temperatures without vaporizing. ...
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