RMS Titanic was a British passenger liner that sank in the North Atlantic Ocean on \(15\) April \(1912\) after colliding with an iceberg during her maiden voyage from Southampton, UK to New York City, US. The solid form of most substances is denser than the liquid phase; thus, a block of most solids will sink in the liquid. However, a block of ice floats in liquid water because ice is less dense. (The above right is the density of ice and water as a function of temperature.) Which of following is relevant to this phenomenon?