The table lists the measured densities of three pure substances at the same temperature
CHEMISTRY · Single correct · CBSE · Chemistry · The Amazing World of Solutes, Solvents, and Solutions · The Amazing World of Solutes, Solvents, and Solutions
Problem
The table lists the measured densities of three pure substances at the same temperature.
Substance Density (solid) / g cm⁻³ Density (liquid) / g cm⁻³
A 1.50 1.47
B 0.93 1.00
C 1.10 1.08
Based on these data, which substance is most likely to expand upon freezing, and why?
(a) Substance A, because its solid is denser than its liquid, so the particles move farther apart when it freezes
(b) Substance C, because the measured densities are almost identical, so experimental uncertainty could make the solid less dense
(c) Substance B, because its solid is less dense than its liquid, so freezing increases volume
(d) None of the substances, since solids are always more closely packed than the corresponding liquids