what is the melting point of substance a? heating curve of substance a temperature (°c) heat added (j)
what is the melting point of substance a? heating curve of substance a temperature (°c) heat added (j)
Answer
Explanation:
Step1: Identify melting - phase on curve
The melting phase is the horizontal part where the substance changes from solid to liquid. On the heating curve of substance A, the horizontal segment is BC.
Step2: Determine melting - point temperature
The temperature corresponding to the horizontal segment BC is 200°C.
Answer:
200