What is the boiling point of water in degrees Celsius?

The boiling point of water is defined as the temperature at which it changes from a liquid to a gas. Under standard atmospheric pressure (1 atmosphere), this temperature is 100 degrees Celsius. At this point, the molecules in water gain enough energy to overcome intermolecular forces and transition into the vapor phase.

This understanding is fundamental in various scientific and practical contexts, such as cooking, where boiling water is a common method for preparing food, and in many industrial processes that involve steam or water as a key component.

The other temperature options do not reflect the typical boiling point of water under normal atmospheric conditions, which is firmly established at 100 degrees Celsius. Therefore, the correct choice is 100 degrees Celsius, as it accurately represents the boiling point of water in standard conditions.