TAMU CHEN 205 - extra-sol567 (8 pages)

Previewing pages 1, 2, 3 of 8 page document View the full content.
View Full Document

extra-sol567



Previewing pages 1, 2, 3 of actual document.

View the full content.
View Full Document
View Full Document

extra-sol567

10 views


Pages:
8
School:
Texas A&M University
Course:
Chen 205 - Chem Engr Thermo I
Chem Engr Thermo I Documents

Unformatted text preview:

ME 24 221 THERMODYNAMICS I Solutions to extra problem set from Chapters 5 6 and 7 Fall 2000 October 30 2000 J Y Murthy 5 61 Saturated x 1 water at 25 C is contained in a hollow spherical aluminum vessel with inside diameter of 0 5 m and a 1 cm thick wall The vessel is heated until the water inside is saturated vapor Considering the vessel and water together as a control mass calculate the heat transfer for the process C V Vessel and water This is a control mass of constant volume m m U U Q W Q State 1 v 0 001003 0 01 x 43 359 0 4346 m kg u 104 88 0 01 x 2304 9 127 9 kJ kg State 2 x 1 and constant volume so v v V m vg T2 v 0 4346 T 146 1 C V INSIDE V Al u uG2 2555 9 0 06545 0 5 0 06545 m mH O 0 1506 kg 0 4346 6 0 52 0 5 0 00817 m 6 mAl AlVAl 2700 x 0 00817 22 065 kg Q U U mH O u u H O mAlCV Al T T 0 1506 2555 9 127 9 22 065 x 0 9 146 1 25 2770 6 kJ 5 63 A rigid insulated tank is separated into two rooms by a stiff plate Room A of 0 5 m contains air at 250 kPa 300 K and room B of 1 m has air at 150 kPa 1000 K The plate is removed and the air comes to a uniform state without any heat transfer Find the final pressure and temperature C V Total tank Control mass of constant volume Mass and volume m m m V V V 1 5 m Energy Eq m u m uA m uB Q W 0 Ideal gas at 1 m P V RT 250 0 5 0 287 300 1 452 kg u 214 364 kJ kg from Table A 7 Ideal gas at 2 m P V RT 150 1 0 287 1000 0 523 kg u 759 189 kJ kg from Table A 7 m m m 1 975 kg u m uA m uB m 1 452 214 364 0 523 759 189 1 975 358 64 kJ kg Table A 7 T 498 4 K P m RT V 1 975 0 287 498 4 1 5 188 3 kPa 5 71 Two containers are filled with air one a rigid tank A and the other a piston cylinder B that is connected to A by a line and valve as shown in Fig P5 71 The initial conditions are mA 2 kg TA 600 K PA 500 kPa and VB 0 5 m3 TB 27 C PB 200 kPa The piston in B is loaded with the outside atmosphere and the piston mass in the standard gravitational field The valve is now opened and the air



View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view extra-sol567 and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view extra-sol567 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?