the heating curve of an ice - water mixture that is slowly heated to 125°c contains three sloped and two…
the heating curve of an ice - water mixture that is slowly heated to 125°c contains three sloped and two level portions. what do the three sloped portions in the graph represent?\na heating\nb deposition\nc sublimation\nd phase changes
Answer
Brief Explanations:
The sloped portions of a heating - curve represent the heating of a substance in a single phase. During these intervals, the temperature of the substance increases as heat is added. The level portions represent phase - changes where the temperature remains constant while heat is used to change the phase. Heating is the process of adding heat energy to a substance which causes its temperature to rise when it is in a single phase, as shown by the sloped parts of the curve. Deposition is the change from gas to solid, sublimation is the change from solid to gas, and phase - changes are represented by the flat parts of the curve.
Answer:
A. heating