Histopathology Board Practice Exam: Practice Test & Study Guide

The boiling point of acetone is correctly identified as 56°C. This value reflects the temperature at which acetone transitions from a liquid to a gas at standard atmospheric pressure (1 atmosphere). Acetone, or propanone, is a volatile organic solvent commonly used in laboratories and industrial applications, and its relatively low boiling point is a key characteristic that facilitates its use in processes such as extraction and purification.

In contrast to the other boiling points listed, acetone's boiling point is significantly lower. For instance, substances with boiling points around 82.3°C, 101.5°C, and 128°C are generally less volatile compared to acetone. This difference in boiling points indicates that acetone will evaporate more readily than substances with higher boiling points, a property that can be advantageous in various applications where quick evaporation is desired.

Overall, understanding the boiling point of acetone is important for its practical use in histopathology and other scientific disciplines.