Heating/Cooling Curves Conceptual

Heating and Cooling Curves - conceptual

By Tania Murphy

The steeper the slope the faster it heats up and the lower the specific heat

The lower the slope the slower it heats up and the higher the specific heat

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What does the slope of the line say about specific heat ?

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​Notice the liquid line has the lowest slope, thus the liquid phase of water has the highest specific heat

The longer the phase change line the stronger the IMF's

One could say that the IMF's stabilize the liquid phase

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​What does the length of the phase change line say about IMF's?

gaining or losing kinetic energy (temperature going up or going down)

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​What energy changes are occurring during slopes (temp changes)?

gaining or losing potential energy (forming or overcoming IMF's)

​**strong IMF's are said to
"stabilize" a substance

​What energy changes are occurring during the plateaus (phase changes)?

Drag and Drop

If the solid line has a steeper slope than the gas line this means that the solid has a​

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than the gas. If the length of the solid-liquid phase change is smaller than the the length of the liquid gas line then it takes ​

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to vaporize than to melt. If two substances have high Delta H vap values then both have ​

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Drag these tiles and drop them in the correct blank above

lower specific heat

more energy

strong IMF's

weak IMF's

less energy

higher specific heat