i. List out various real-life examples of Charles’ law.
ii. Refer and watch Charles’ law experiments.
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i. Few real-life examples of Charles’ law :
a. Helium balloon :
If we fill a helium balloon in a warm or hot room, and then take it into a cold room, it shrinks up and will look like it has lost some of the air inside it. This shows that gases expand on heating and contract on cooling.
b. A bottle of deodorant :
If we expose a bottle of deodorant to sunlight and high temperatures, the air molecules inside the bottle will expand which can lead to the bursting of the deodorant bottle. This is another example of Charles’ law.
c. Basketball :
You may have noticed that a basketball has less responsive bounce during winter than in summer. This yet another example of Charles’ law. When a basketball is inflated, the air pressure inside it is set to a fixed value. As the temperature falls, the volume of the gas inside the ball also decreases proportionally.
[Note : Students are expected to collect additional real-life examples on their own,]
ii. pi
[ Note : Students can scan the adjacent QR code to visualize Charles’ law with the aid of a relevant video.]
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