the melting point is at point ______
the melting point is at point ______
Answer
Explanation:
Step1: Recall melting - point concept
The melting - point is the temperature at which a solid changes to a liquid. On a heating - curve, it is represented by the horizontal line during the phase change from solid to liquid.
Step2: Identify the relevant horizontal line
In the given heating - curve, the horizontal line segment BC represents the melting process where the substance is changing from solid to liquid while the temperature remains constant. The starting point of this horizontal line (point B) is the melting point.
Answer:
C. B