Langyou Chemical
SUPPLEMENTS
Cooling Curve of Stearic Acid Lab Answers
The answer to the experiment on the cooling curve of stearic acid is related to
a certain student, good at studying the science of physics and chemistry. One day, the teacher ordered him to study the test of the cooling curve of stearic acid.
The student is to prepare various utensils, take an appropriate amount of stearic acid, and put it in containers. Slow down the heat with a fire, and wait for it to melt away, like flowing gold, the temperature gradually rises.
Then move away from the heat source, use a thermometer to detect its temperature, and record it when it melts, and draw it on the map. At the beginning, the temperature drop was rapid, and stearic acid was still a liquid, and its heat dissipation rate. Not long after, the temperature drop gradually slowed down, and a flat section appeared on the picture. Cover this time stearic acid, condens
When stearic acid is completely coagulated, it is solidified again, and the temperature drops again, and the speed is slightly slower than when it first drops.
The curve obtained by biological detailed analysis shows that when the phase of matter changes, the temperature changes. And from the shape of the curve, we can know the temperature of stearic acid condensation and the principle of heat transfer.
The work of this experiment has deepened the relationship between physical state change and heat, and further advanced the study of rationalization.
a certain student, good at studying the science of physics and chemistry. One day, the teacher ordered him to study the test of the cooling curve of stearic acid.
The student is to prepare various utensils, take an appropriate amount of stearic acid, and put it in containers. Slow down the heat with a fire, and wait for it to melt away, like flowing gold, the temperature gradually rises.
Then move away from the heat source, use a thermometer to detect its temperature, and record it when it melts, and draw it on the map. At the beginning, the temperature drop was rapid, and stearic acid was still a liquid, and its heat dissipation rate. Not long after, the temperature drop gradually slowed down, and a flat section appeared on the picture. Cover this time stearic acid, condens
When stearic acid is completely coagulated, it is solidified again, and the temperature drops again, and the speed is slightly slower than when it first drops.
The curve obtained by biological detailed analysis shows that when the phase of matter changes, the temperature changes. And from the shape of the curve, we can know the temperature of stearic acid condensation and the principle of heat transfer.
The work of this experiment has deepened the relationship between physical state change and heat, and further advanced the study of rationalization.
Scan to WhatsApp
