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A gas with initial volume of 2 X 10-6m3 is allo... - JAMB Physics 2001 Question

A gas with initial volume of 2 X 10-6m3 is allowed to expand to six times its initial value at constant pressure of 2 x 105Nm-2. The work done is
A
2.0J
B
4. 0 J
C
12.0 J
D
2.4 J
correct option: d

P = F/A => F = PA = PV/L

W = FD = (PV/L) x L = PV

= 2 x 105

(2 x 10-6 x 6)

= 2 x 105 x 1.2 x 10-5

= 2.4 J

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