Download Solution Manual Chapters 1-9 for Classical Mechanics and by Sonntag, Borgnakke, Van Wylen. PDF

By Sonntag, Borgnakke, Van Wylen.

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1, is used instead? 73E A water storage tank contains liquid and vapor in equilibrium at 220 F. The distance from the bottom of the tank to the liquid level is 25 ft. What is the absolute pressure at the bottom of the tank? 74E A sealed rigid vessel has volume of 35 ft3 and contains 2 lbm of water at 200 F. The vessel is now heated. If a safety pressure valve is installed, at what pressure should the valve be set to have a maximum temperature of 400 F? 75E Saturated liquid water at 200 F is put under pressure to decrease the volume by 1%, keeping the temperature constant.

71E Give the phase and the missing properties of P, T, v and x. These may be a little more difficult if the appendix tables are used instead of the software. Solution: a. 1 v > vg sup. vap. 2 interpolate between sat. and sup. vap at 50F. 3 lbf/in2 b. 1 since vf is so small we find it approximately where vg = 4 ft3/lbm. 3293 at 330 F, linear interpolation c. 80997 at 340 F. 1, v < vf compr. liquid P ≅ 500 lbf/in2 d. 1 P < Psat sup. vap. 97 ft3/lbm v is not linear in P (more like 1/P) so computer table is more accurate.

This system is brought indoors and warms up to 15°C. a. Is the piston at the stops in the final state? b. Find the work done by the R-22 during this process. Solution: Initially piston floats, V < Vstop so the piston moves at constant Pext = P1 until it reaches the stops or 15°C, whichever is first. 1487 m = V/v = Check the temperature at state 1a: P 1a = 150 kPa, v = Vstop/m. 06725 => T1a = -9 °C & T2 = 15°C Since T2 > T1a then it follows that P2 > P1 and the piston is againts stop. b) Work done at const Pext = P1.