MIDDLE EAST TECHNICAL UNIVERSITY DEPARTMENT OF CHEMICAL ENGINEERING Ch.E. 204- Thermodynamics I (Section 04) Dr. N. Sezgi, Ö. Mercan PROBLEM SET II (Date Due: March 19, 2011) Problem 1 : A 653 kg piston is initially held in place by a removable latch above a cylinder. The cylinder has an area of 0.093 m 2 , the volume of the gas within the cylinder initially is 0.057 m 3 and at a pressure of 1.013x10 6 Pa. The cylinder has a total volume of 0.14 m 3 and the top is open to the surrounding atmosphere, whose pressure is 1.013x10 5 Pa. a) If the piston rises frictionlessly in the cylinder when the latches are removed and the gas within the cylinder is always kept at the same temperature, what will be the velocity of the piston as it leaves the cylinder? b) What will be the maximum height to which the piston will rise? Problem 2: Measured data for pressure versus volume during the expansion of gases within the cylinder of an internal combustion engine are given in the table below. Using data from the table,
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