3Gbäj öeljäll - 2_547467591...1546499.pdf1- A rigid tank initially contains 1.4-kg saturated liquid water at 200°C. At thisstate, 25 percent of the volume is occupied by water and the rest by air. Nowheat is supplied to the water until the tank contains saturated vapor only.Determine (a) the volume of the tank, (b) the final temperature and pressure,and (c) the internal energy change of the water.Ans. (a) 0.001619 m', (b) 371.3 °C & 21367 kpa (c) 1892 kj2- A rigid tank with a volume of 1.8 m3 contains 15 kg of saturated liquid-vapor mixture of water at 908C. Now the water is slowly heated. Determinethe temperature at which the liquid in the tank is completely vaporized.Also, show the process on a T-v diagram with respect to saturation lines.Ans. 202.9 °C3- Two tanks are connected as shown in Figure, both containing water. Tank Ais at 200 kPa, v = 0.5 m/kg, VA =lm 3, and tank B contains 3.5 kg at 0.5MPa and 400C. The valve is now opened and the two tanks come to auniform state. Find the final specific volume.Ans. 0.5746m3/kg|l>

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1- A rigid tank initially contains 1.4-kg saturated liquid water at 200°C. At this state, 25 percent of the volume is occupied by water and the rest by air. Now heat is supplied to the water until the tank contains saturated vapor only. Determine (a) the volume of the tank, (b) the final temperature and pressure, and (c) the internal energy change of the water. Ans. (a) 0.001619 m', (b) 371.3 'C & 21367 kpa (c) 1892 kj

1- A rigid tank initially contains 1.4-kg saturated liquid water at 200°C. At this state, 25 percent of the volume is occupied by water and the rest by air. Now heat is supplied to the water until the tank contains saturated vapor only. Determine (a) the volume of the tank, (b) the final temperature and pressure, and (c) the internal energy change of the water. Ans. (a) 0.001619 m', (b) 371.3 'C & 21367 kpa (c) 1892 kj

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Chemical and Phase Equilibrium

Phase diagrams or equilibrium phase diagrams are the graphical representations that show the phase transformations of the constituting elements with respect to the pressure, temperature, and compositions. The diagrams show the conditions that limit the different phases, namely solid, liquid, and gas. The diagram can also be utilized to verify the relations between the state variables. Most of the phase diagrams are temperature-pressure phase diagrams, with the variable parameter as the composition. Usually other variables such as solubility and pressure parameters are not indicated in the phase diagram. For a one-component system (unary phase diagram), the phase diagram is generally a function of temperature and pressure as the state variables, or temperature and volume. However, for a binary system (two-phase) having two components, the phase diagram is a function of temperature and composition as the state variables only. Coexisting of the different phases of the constituting elements is indicated in the phase diagram. A ternary phase diagram can be characterized by consisting of three phases in equilibrium.

Question

3G
bäj öeljäll - 2_547467591...1546499.pdf
1- A rigid tank initially contains 1.4-kg saturated liquid water at 200°C. At this
state, 25 percent of the volume is occupied by water and the rest by air. Now
heat is supplied to the water until the tank contains saturated vapor only.
Determine (a) the volume of the tank, (b) the final temperature and pressure,
and (c) the internal energy change of the water.
Ans. (a) 0.001619 m', (b) 371.3 °C & 21367 kpa (c) 1892 kj
2- A rigid tank with a volume of 1.8 m3 contains 15 kg of saturated liquid-
vapor mixture of water at 908C. Now the water is slowly heated. Determine
the temperature at which the liquid in the tank is completely vaporized.
Also, show the process on a T-v diagram with respect to saturation lines.
Ans. 202.9 °C
3- Two tanks are connected as shown in Figure, both containing water. Tank A
is at 200 kPa, v = 0.5 m/kg, VA =lm 3, and tank B contains 3.5 kg at 0.5
MPa and 400C. The valve is now opened and the two tanks come to a
uniform state. Find the final specific volume.
Ans. 0.5746
m3/kg
|l>

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