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

Answer 1

The correct answer is:

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

The boiling point of a substance, such as pure water, is determined by its intrinsic properties and does not depend on the volume of the sample. Under standard atmospheric pressure, pure water boils at 100 degrees Celsius (212 degrees Fahrenheit), regardless of whether you have 1 L or 10 L.