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A gas can expand from 100 mL to 250 mL u...

A gas can expand from `100 mL` to `250 mL` under a constant pressure of `2` atm. The work done by the gas is

A

30.83 J

B

25 J

C

5 kJ

D

16 J

Text Solution

Verified by Experts

The correct Answer is:
A
`V_(1) = 100 mL , V_(2) = 250 mL`
Pressure p= 2atm, or `2 xx 10^(5) Nm^(-2)`
Work done by the gas W = `pDeltaV` or `p(V_(2)-V_(1))`
Put the value in given formula
`w= 2xx 1.01 xx 10^(5) ( 0.250 xx 10^(-3) - 0.100 xx 10^(-3)) = 2 xx 1.01 xx 10^(5) xx 015 xx 10^(-3) = 30.30` J
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