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. A gas is enclosed in a cylindrical container fitted with a piston of cross-sectional area...

. A gas is enclosed in a cylindrical container fitted with a piston of cross-sectional area 0.30 m2 . The pressure of the gas is maintained at 2.0 ×104 Pa as the piston moves outward 0.25 m. The internal energy of the gas decreases by 550 J in the process. Find the amount of heat added to (or taken from) the gas during the expansion. a) 950 J, added to the gas b) 950 J, taken from the gas c) 2050 J, added to the gas d) 2050 J, taken from the gas

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