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Thermodynamics problem examples with solution, Assignments of Thermodynamics

University of Manila (UM)Thermodynamics

prob 1: Saturated water at 14.696 psia and 212°F has the following properties: û. = 0.01672 ft3/Ibm Û = 26.80 ft3/lbm liq vapor û, = 180.1 Btu/bm û, = 1077.6 Btu/lbm liq vapor û = 180.1 Btu/lbm Н. = 1150.5 Btu/lbm vapor liq If 0.3 lbm of saturated water at 14.696 psia is put into a sealed rigid container whose total volume is 6.0 ft, determine the following properties of the system: a. The specific volume û (ft). sys b. The quality, X, and moisture, 1 - X. C. The specific internal energy û (Btu/

Typology: Assignments

2021/2022

Available from 02/16/2023

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Saturated water at 14.696 psia and 212°F has the following properties: û. = 0.01672 ft3/Ibm Û =
26.80 ft3/lbm liq vapor û, = 180.1 Btu/bm û, = 1077.6 Btu/lbm liq vapor û = 180.1 Btu/lbm Н. =
1150.5 Btu/lbm vapor liq If 0.3 lbm of saturated water at 14.696 psia is put into a sealed rigid
container whose total volume is 6.0 ft, determine the following properties of the system: a. The
specific volume û (ft). sys b. The quality, X, and moisture, 1 - X. C. The specific internal energy û
(Btu/Ibm) sys d. The specific enthalpy Н. (Btu/Ibm) sys e. The mass of water in the liquid and
vapor phases, mliq and myap (lbm)
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Saturated water at 14.696 psia and 212°F has the following properties: û. = 0.01672 ft3/Ibm Û = 26.80 ft3/lbm liq vapor û, = 180.1 Btu/bm û, = 1077.6 Btu/lbm liq vapor û = 180.1 Btu/lbm Н. = 1150.5 Btu/lbm vapor liq If 0.3 lbm of saturated water at 14.696 psia is put into a sealed rigid container whose total volume is 6.0 ft, determine the following properties of the system: a. The specific volume û (ft). sys b. The quality, X, and moisture, 1 - X. C. The specific internal energy û (Btu/Ibm) sys d. The specific enthalpy Н. (Btu/Ibm) sys e. The mass of water in the liquid and vapor phases, mliq and myap (lbm)

A baloon is filled with methane gas at 20 c and 1 bar until the volume is 42.5 m^3 calculate the mass of the balloon.

A drum 6 in. in diameter and 40 in. long contained acetylene at 250 psia and 90 0 F. After some of the acetylene was used, the pressure was 200 psia and the temperature was 850 F. (a) What proportion of the acetylene was used? (b) What volume would the used acetylene occupy at 14.7 psia and 800 F? R for acetylene is 59.35 ft-lbf/lbm0R

gas initially at 15 psia and 2 ft3 undergoes a process to 90 psia and 0.60 ft}, during which the enthalpy increases by 15.5 BTU; C,= 2.44 BTU/lb °R. Determine (a) AU (b) cp and (c) R