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| Q. |
At boiling point of liquids, its – |
| A. | Temperature increases |
| B. | Atmospheric pressure increases |
| C. | Temperature remains constant |
| D. | Vapour pressure decreases |
| Answer» C. Temperature remains constant | |
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Explanation: An interesting property of matter is that its temperature remains constant during a phase change, assuming its surrounding pressure is constant. A liquid changes into gaseous state at a constant temperature called its boiling point. |
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