can someone explain This cooling graph throughly.
Answers
Answer:
A cooling curve is a line graph that represents the change of phase of matter, typically from a gas to a solid or a liquid to a solid. The independent variable (X-axis) is time and the dependent variable (Y-axis) is temperature.
The initial point of the graph is the starting temperature of the matter, here noted as the "pouring temperature". When the phase change occurs, there is a "thermal arrest"; that is, the temperature stays constant. This is because the matter has more internal energy as a liquid or gas than in the state that it is cooling to. The amount of energy required for a phase change is known as latent heat. The "cooling rate" is the slope of the cooling curve at any point.
Answer:
as the graph say at some point of temperature it was constant for some time but after a period it was fallen down. and again and again as the time passed.
this is time-temperature graph so if it's a straight line falling down then it is said to be temperature falling constantly with the time .