What's the difference between heatting curve of water and heating curve of glass?

Answer 1

The heating curve of water and the heating curve of glass are similar in that they both illustrate the relationship between the temperature of the substance and the amount of energy added to it as it is heated. However, there are some key differences between the two curves.

One major difference is that water has a much higher specific heat capacity than glass. This means that water requires more energy to raise its temperature by a certain amount than glass does. As a result, the heating curve for water will be flatter than the heating curve for glass, indicating that it takes more energy to raise the temperature of water.

Another difference is that water has a phase change (melting and boiling) at certain temperature ranges, whereas glass does not. So, the heating curve of water will have a steep increase in temperature at the freezing point and the boiling point, indicating the energy absorbed during the phase changes.

Additionally, the thermal expansion coefficient of water is much higher than that of glass, meaning that water expands much more than glass when heated, which also affects the heating curve.

In summary, the heating curve of water is flatter and has more steep increases due to phase changes and thermal expansion, while the heating curve of glass is steeper and does not have phase changes.

John Carlo Coronado