A compression, at a constant pressure of 190 kPa, is performed on 5.0 moles of an ideal monatomic gas. The compression reduces the volume of the gas from 0.19 m³ to 0.12 m³. The ideal gas constant is R = 8.314 J/mol ∙ K. The work done by the gas is closest to A) -13 kJ. B) 13 kJ. C) -33 kJ. D) 33 kJ. E) 0.00 kJ.

Question

Quizplus · Accepted Answer

The work done by the gas during compression at constant pressure is given by W = -PΔV. Here, P = 190 kPa = 190,000 Pa, ΔV = 0.12 m³ - 0.19 m³ = -0.07 m³. Thus, W = -190,000 Pa * (-0.07 m³) = 13,300 J = 13 kJ.

A Compression, at a Constant Pressure of 190 KPa, Is