Questions: What water would be the least dense? Freshwater at 8°C Freshwater at 1°C Freshwater at 6°C Freshwater at 20°C

Solution Steps

Water density is affected by temperature. Generally, as the temperature of water increases, its density decreases. This is because water molecules move more vigorously at higher temperatures, causing them to occupy more space.

We are given four different temperatures for freshwater: \(1^{\circ} \mathrm{C}\), \(6^{\circ} \mathrm{C}\), \(8^{\circ} \mathrm{C}\), and \(20^{\circ} \mathrm{C}\). According to the general rule, the water at the highest temperature should be the least dense.

Among the given temperatures, \(20^{\circ} \mathrm{C}\) is the highest. Therefore, freshwater at \(20^{\circ} \mathrm{C}\) would be the least dense compared to the other temperatures provided.

Final Answer