What is the approximate boiling point of the substance represented by the complete heating curve below?
(2 points)
A) 30°C
B) 40°C
C) 50°C
D) 100°C
No curves provided.
In order to determine the approximate boiling point of the substance represented by the heating curve, we need to analyze the curve itself.
The heating curve is a gradual upward slope followed by a plateau, followed by another gradual upward slope. The plateau in the curve represents a phase change from a liquid to a gas, which is the boiling point of the substance.
To estimate the boiling point, we need to find the temperature at which the plateau occurs. By analyzing the curve, we can see that the plateau starts at around 100°C, indicated by the slight change in slope.
Therefore, the approximate boiling point of the substance represented by the heating curve is 100°C.
So, the correct answer is D) 100°C.