Question

Bell- jar experiment full process (chemistry)​

Answer 1

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• The experiment is done by placing an electrical bell in the bell jar. As the air is pumped out of the sealed bell jar, the sound from the bell jar fades. At a particular vacuum, no more sound is heard from the bell, but we can see that the hammer continues hitting the gong and sound is produced.

Explanation:

Robert Boyle

• The earliest person to test this experimentally was the Irish physicist Robert Boyle (1627–1691). 1 In his ex- periment, he put a ringing bell under a glass cover called a bell jar. After the air was pumped out, the ringing disappeared. This convinced him that sound cannot be conducted in vacuum.

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