Federico has two samples of pure water—sample X and sample Y. Sample X has a volume of 1 L, and sample Y has a volume of 10 L. How do the boiling points of these two samples compare?

Question

A.
Whichever sample receives heat first will have a lower boiling point.
B.
Sample Y will boil at a lower temperature because it has more volume.
C.
Sample X and sample Y will boil at the same temperature.
D.
Sample X will boil at a lower temperature because it has less volume.

Answer 1

The correct answer is:

C. Sample X and sample Y will boil at the same temperature.

Boiling point is a characteristic property of a substance and is not affected by the volume of the sample when the substance is in pure form and under the same conditions. In the case of pure water, the boiling point is defined at 100 °C (212 °F) at standard atmospheric pressure, regardless of the volume of water present.