A gas is enclosed in a container fitted with a piston of cross-sectional area 0.

Question

A gas is enclosed in a container fitted with a piston of cross-sectional area 0.150 m2. The pressure of the gas is maintained at 6600 Pa as the piston moves inward 19.5 cm.

A gas is enclosed in a container fitted with a piston of cross-sectional area 0.150 m2. The pressure of the gas is maintained at 6600 Pa as the piston moves inward 19.5 cm. Calculate the work done by the gas. If the internal energy of the gas decreases by 8.00 J, find the amount of heat removed from the system by heat during the compression.

Explanation / Answer

work done W = PdV

W = 6600* 0.150*0.195

W =-193.05 Joules

b. Heat = -193.05+8

= 185.5 J

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