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If 20 cm^(3) gas at 1 atm is expanded to...

If `20 cm^(3)` gas at `1 atm` is expanded to `50 cm^(3)` at constant `T`, then what is the final pressure

A

`20 xx (1)/(50)`

B

`50 xx (1)/(20)`

C

`1xx (1)/(20) xx 50`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
`P_(1)V_(1)=P_(2)V_(2). 1xx20 = P_(2) xx50 `
` P_(2)=20 xx(1)/(50 ) atm .`
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