Answered: 1. A 8 kgs gas contained in a vertical…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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1. A 8 kgs gas contained in a vertical piston cylinder assembly is shown in the figure below. The area and the mass of the piston are 300 cm2 and 15 kg, respectively. A spring is loaded in the piston, which the force exerted varies linearly with the displacement, s. At initial position, the piston face is at s=0, the spring exerts no force. Heat is added to the air causing the gas to expand until the piston reached the stops at s=0.08m and the heat transfer ceases. The atmospheric pressure is 1 bar, the observed gravitational acceleration is g=9.81 m/s2, consider the spring constant, k to be 8,500 N/m and neglect friction between the piston and the cylinder. Determine:

a.The initial pressure of the gas in Kpa

b.The work done by the gas on the piston in J

c.The heat transfer in J, when the specific internal energies of the gas at the initial and final states are energies of the gas at the initial and final states are 210 KJ/Kg and 335 KJ/Kg, respectively