We were given a test tube containing dodecanoic acid in liquid state and had a thermometer in it. We would then have to clamp it into position into a beaker of room temperature water. We would monitor the cooling process and record its temperature every 30 seconds until the dodecanoic acid reached a temperature near 25 deg. Celsius. The temperature would be recorded every 30 seconds. After that, we would have to put the solid dodecanoic acid into a beaker full of 55 deg. Celsius water. With hot plate under the beaker. The temperature would also be taken every 30 seconds and be recorded. Then we cleaned up with rinsing our hand with soap and water.
-A video of demonstrating melting and freezing of a substance.
Some info on dodecanoic acid
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