Question

A solid is heated from 0°C to 100°C. It's volume increases from V¹ to V². It's now cooled to 0°C. Will it's volume at 0°C be V¹ or V²

Please Answer In Detail​

Answer 1

Answer:

At 0°C, the volume of the solid will be V1 again.

The molecules of solids are tightly packed. Therefore, on heating to 100°C, the molecules just vibrate at their specific positions, thereby increasing the volume. Once the solids are cooled back to 0°C, the molecules stop vibrating, thereby returning to their specific positions.