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A cylinder with a moving piston expands from an initial volume of 0.150 L against an external pressure of 1.50 atm . The expansion does 217 J of work on the surroundings. What is the final volume of the cylinder

Respuesta :

hamzaahmeds

Answer:

Vā‚‚ = 0.0016 mĀ³ = 1.6 L

Explanation:

The work done by the system against a constant external pressure is given by:

W = PĪ”V

W = P(Vā‚‚ - Vā‚)

Vā‚‚ = (W/P) + Vā‚

where,

W = Work done by the piston = 217 J

P = Constant External Pressure = (1.5 atm)(101325 Pa/ 1 atm) = 151988 Pa

Vā‚ = Initial Volume = (0.15 L)(0.001 mĀ³/1 L) = 0.00015 mĀ³

Therefore,

Vā‚‚ = (217 J/151988 Pa) + 0.00015 mĀ³

Vā‚‚ = 0.0016 mĀ³ = 1.6 L

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