A heating or cooling curve is a simple line graph that shows the phase changes a given substance undergoes with increasing or decreasing temperature.
Heating and cooling graphs that include changes of state.
Plot a graph of temperature against time.
We look at what happens.
Summary of state changes.
Cooling curves are the opposite.
Heating curves show how the temperature changes as a substance is heated up.
If a heater of known power is used such as a 60 w immersion heater that provides 60 j s the temperature of a known mass of.
Latent heat can be measured from a heating or cooling curve line graph.
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Notice that the temperature stays the same during the state change freezing and this is the melting point.
Https www freesciencelessons co uk workbooks in this video we look at heating and cooling curves.
Just like heating curves cooling curves have horizontal flat parts where the state changes from gas to liquid or from liquid to solid.
If a heater of known power is used such as a 60 w immersion heater that provides 60 j s the temperature of a known mass of.
They show how the temperature changes as a substance is cooled down.
The sloped areas of the graph represent a.
Latent heat can be measured from a heating or cooling curveline graph.
The ice could then be cooled to some point below 0 c.
Substances can change state usually when they are heated or cooled.
This could be diagrammed in a cooling curve that would be the reverse of the heating curve.
A heating curve for ice the temperature stays the same when a solid is melting or a liquid is boiling changing state during a change of state even though heat energy is being absorbed.
All of the changes of state that occur between solid liquid and gas are summarized in the diagram in the figure below.