A gas is enclosed in a container fitted with a piston of crosssectional area 0.150 m2. The pressure of the gas is maintained at 6.00 x 103 Pa as the piston moves inward 20.0 cm. (a) Calculate the work done by the gas. (b) If the internal energy of the gas decreases by 8.00 J, find the amount of energy removed from the system by heat during the compression.

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