06.02 Phase Changes
Part 1.
Using the data and observations in the table below, create a heating curve for hydrogen that Dr. Wong can reference during his laboratory testing. Be sure to include and label the following items in your heating curve:
Create temperature and time intervals that are appropriate for the data.
Don’t start the temperature on the graph at 0 °C because the time intervals will be too large for the hydrogen data.
- Label the melting and boiling points on the curve.
- Label the three states and the two transition phases on the curve.
- Heating data:
- Time (Minutes)Observations0:00Hydrogen is a solid at ?263 °C. Heat is added to sample.2:43Hydrogen begins to change into a liquid at ?259 °C.6:15Temperature of the liquid begins to increase.10:36Hydrogen begins to form a gas at ?253 °C.14:01Temperature of the gas begins to increase.18:00Final temperature of hydrogen gas is ?245 °C.
PART 2.
Create a model of the atoms of a substance moving through the solid, liquid, and gas states. This can be a physical model using household or crafting items or a colorful diagram, illustration, or animation. You can be as creative as you want. Be sure to include and label the following items in your model:
the three states of matter
movement and spacing of molecules
loss or gain of kinetic energy and temperature
transfer of heat
breaking or building of intermolecular bonds
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