Free Expansion

Science questions not covered in Chem 14A and 14B. Try to limit questions to chemistry (inorganic chemistry, physical chemistry, organic chemistry, biophysical chemistry, biochemistry, materials science, environmental chemistry).

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Jonathan Christie 1I
Posts: 32
Joined: Mon Apr 09, 2018 1:38 pm

Free Expansion

Postby Jonathan Christie 1I » Sat Mar 09, 2019 8:30 pm

What are some real-world examples of free expansion?
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Ana Pedreros
Posts: 62
Joined: Fri Sep 28, 2018 12:19 am

Re: Free Expansion

Postby Ana Pedreros » Sun Mar 10, 2019 1:17 pm

Free expansion can be seen when trying open a tight jar. If you run the jar under hot water, the increase of heat will cause the gas inside to expand and push pressure onto the lid slightly. This will cause the lid to loosen and open easily.
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Katie Sy 1L
Posts: 57
Joined: Fri Sep 28, 2018 12:18 am

Re: Free Expansion

Postby Katie Sy 1L » Sun Mar 10, 2019 1:35 pm

expansion joints on bridges and overpasses. for example, a bridge deck gets longer in the heat of summer and contracts in the cold of winter
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Jonathan Christie 1I
Posts: 32
Joined: Mon Apr 09, 2018 1:38 pm

Re: Free Expansion

Postby Jonathan Christie 1I » Wed Mar 13, 2019 8:31 pm

Interesting, thank you for the responses. Real-world examples help me contextualize topics
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