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8. One mole of

O2 gas having a volume equal to 22.4 litres at 0°C and 1 atmospheric pressure in compressed isothermally so that its volume reduces to 11.2 litres. The work done in this process is         

(a) 1672.5 J                            (b)  1728 J

(c) -1728 J                             (d) -1572.5 J

Answer-d

(6)

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