Statement-1: When a glass container containing water at room temperature is kept over a flame, the level of water first decreases slightly, then increases.
Statement-2: On heating at room temperature ( $2 7^{\circ} C$ ), water first contracts and then expands.

Question

Statement-1: When a glass container containing water at room temperature is kept over a flame, the level of water first decreases slightly, then increases.

Statement-2: On heating at room temperature ( $2 7^{\circ} C$ ), water first contracts and then expands.

TestHub · Accepted Answer

The glass heats and expands before the water warms appreciably, so the level first falls. Later the water expands and its level rises. Water at room temperature does not initially contract on heating.

Physics - Heat & Thermo Question with Solution | TestHub

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