Could someone tell me what thermal changes are in a heat curve of water or in general what it is?
Thank you...
i tried googling it but i got thermal changes of ...
would thermal change be temperature change?
yes.
http://www.google.com/images?q=heat+curve&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&source=univ&ei=q7ERTNi2FIa8lQeG8MDtBw&sa=X&oi=image_result_group&ct=title&resnum=1&ved=0CB0QsAQwAA
Certainly! The thermal changes in a heat curve of water refer to the changes in temperature and phase that occur as heat is added or removed from water. A heat curve, also known as a heating/cooling curve, is a graphical representation of how the temperature of a substance changes as heat is transferred to or from it.
In the case of water, let's consider a heating curve. Initially, as heat is applied to ice at temperatures below 0 degrees Celsius, the ice absorbs the heat energy, and its temperature rises. This phase is known as the solid phase.
Once the temperature of the ice reaches 0 degrees Celsius, further addition of heat does not cause an increase in temperature. Instead, the heat is used to melt the ice into liquid water. This phase is called the phase change or the phase transition from a solid to a liquid. During this phase transition, the temperature remains constant at 0 degrees Celsius until all the ice has melted.
After all the ice has melted, the temperature of the water starts to rise again as heat is added. This phase is known as the liquid phase. The temperature continues to rise until it reaches 100 degrees Celsius. At this point, another phase change occurs, and the liquid water starts to turn into steam or water vapor. This phase change is called boiling or vaporization. During this phase transition, the temperature remains constant at 100 degrees Celsius until all the liquid water has converted into steam.
Once all the liquid water has vaporized, the temperature of the steam starts to rise again as more heat is added. This phase is called the gaseous phase.
To summarize, the thermal changes in the heat curve of water involve an increase in temperature during the solid and liquid phases, phase changes at 0 degrees Celsius (melting) and 100 degrees Celsius (boiling), and a temperature increase during the gaseous phase.
To obtain a heat curve for water or any other substance, you would need to measure the temperature of the substance at specific intervals as heat is added or removed. This can be done using a suitable thermometer or temperature sensor. The data collected would then be plotted on a graph to visually represent the changes in temperature during the different phases and phase transitions.