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An ideal gas is allowed to expand from 1...

An ideal gas is allowed to expand from 1L to 10 L against a constant external pressure of 1 bar. The work doen in kJ is:

A

`-0.9`

B

`-9.0`

C

`-2.0`

D

`+10.0`

Text Solution

Verified by Experts

The correct Answer is:
A
`W = - P_(ext)(V_2 - V_1) = -1(10-1) = -9" bar"`
`L = -900 J = -0.9 kJ`.
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