JAMB - Physics (2025 - No. 4)

The density of water is 1g/cm\(^3\) while that of ice is 0.9g/cm\(^3\). Calculate the change in volume when 90g of ice is completely melted.

9cm\(^3\)

90cm\(^3\)

0cm\(^3\)

10cm\(^3\)

Answer: D. 10cm³

(Volume ice = \(\frac{90}{0.9}\) = 100 cm\(^3\);

volume water = \(\frac{90}{1}\) = 90 cm\(^3\);

change = 10 cm\(^3\) decrease.)