Solution Found!
Using p ? v ? T DataEach of the following exercises
Chapter 3, Problem 17P(choose chapter or problem)
Each of the following exercises requires evaluating the quality of a two-phase liquid-vapor mixture:
(a) The quality of a two-phase liquid-vapor mixture of \(\mathrm{H}_2 \mathrm{O}\) at \(40^{\circ} \mathrm{C}\) with a specific volume of \(10 \mathrm{~m}^3 / \mathrm{kg}\) is
(i) 0 , (ii) 0.486 (iii) 0.512, (iv) 1 .
(b) The quality of a two-phase liquid-vapor mixture of propane at 20 bar with a specific internal energy of \(300 \mathrm{~kJ} / \mathrm{kg}\) is (i) 0.166, (ii) 0.214, (iii) 0.575, (iv) 0.627.
(c) The quality of a two-phase liquid-vapor mixture of Refrigerant 134a at \(90 \mathrm{lbf} / \mathrm{in}^2\) with a specific enthalpy of \(90 \mathrm{Btu} / \mathrm{lb}\) is (i) 0.387, (ii) 0.718, (iii) 0.806, (iv) 0.854.
(d) The quality of a two-phase liquid-vapor mixture of ammonia at \(-20^{\circ} \mathrm{F}\) with a specific volume of \(11 \mathrm{ft}^3 / \mathrm{lb}\) is (i) 0 , (ii) 0.251, (iii) 0.537, (iv) 0.749.
Questions & Answers
QUESTION:
Each of the following exercises requires evaluating the quality of a two-phase liquid-vapor mixture:
(a) The quality of a two-phase liquid-vapor mixture of \(\mathrm{H}_2 \mathrm{O}\) at \(40^{\circ} \mathrm{C}\) with a specific volume of \(10 \mathrm{~m}^3 / \mathrm{kg}\) is
(i) 0 , (ii) 0.486 (iii) 0.512, (iv) 1 .
(b) The quality of a two-phase liquid-vapor mixture of propane at 20 bar with a specific internal energy of \(300 \mathrm{~kJ} / \mathrm{kg}\) is (i) 0.166, (ii) 0.214, (iii) 0.575, (iv) 0.627.
(c) The quality of a two-phase liquid-vapor mixture of Refrigerant 134a at \(90 \mathrm{lbf} / \mathrm{in}^2\) with a specific enthalpy of \(90 \mathrm{Btu} / \mathrm{lb}\) is (i) 0.387, (ii) 0.718, (iii) 0.806, (iv) 0.854.
(d) The quality of a two-phase liquid-vapor mixture of ammonia at \(-20^{\circ} \mathrm{F}\) with a specific volume of \(11 \mathrm{ft}^3 / \mathrm{lb}\) is (i) 0 , (ii) 0.251, (iii) 0.537, (iv) 0.749.
ANSWER:Solution 17P
Step 1 of 9
Here our aim is to determine the quality of different two-phase mixtures from the given parameters.
In part (a), Specific Volume of Liquid Vapour mixture is given. In part (b), Specific Internal Energy is given. In part (c), the given parameter is Specific Enthalpy and in part (d), Specific Volume is given. We have to find the quality in each case, by referring to the respective standard tables.
Part (a)