Heating And Cooling Graphs That Include Changes Of State

Latent heat can be measured from a heating or cooling curve line graph.

Heating and cooling graphs that include changes of state.

The diagram shows a cooling curve for salol. Find my revision workbooks here. 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.

Heating curves show how the temperature changes as a substance is heated up. Notice that the temperature stays the same during the state change freezing and this is the melting point. Summary of state changes. Just like heating curves cooling curves have horizontal flat parts where the state changes from gas to liquid or from liquid to solid.

Plot a graph of temperature against time. Latent heat can be measured from a heating or cooling curveline graph. Substances can change state usually when they are heated or cooled. Https www freesciencelessons co uk workbooks in this video we look at heating and cooling curves.

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. The sloped areas of the graph represent a. For example liquid water turns into steam when it is heated enough and it turns into ice when it is cooled. The ice could then be cooled to some point below 0 c.

We look at what happens. Cooling curves are the opposite. Interpret heating and cooling graphs that include change of state reading heating and cooling curves examples and step by step solutions gcse igcse physics notes. 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.