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Using u?h Data Using the tables for water, determine the
Chapter 3, Problem 44P(choose chapter or problem)
Using the tables for water, determine the specified property data at the indicated states. In each case, locate the state by hand on sketches of the p-v and T-v diagrams.
(a) At \(p=3 \mathrm{bar}, v=0.5 \mathrm{~m}^3 / \mathrm{kg}\), find T in \({ }^{\circ} \mathrm{C}\) and u in \(\mathrm{kJ} / \mathrm{kg}\).
(b) At \(T=320^{\circ} \mathrm{C}, v=0.03 \mathrm{~m}^3 / \mathrm{kg}\), find p in MPa and u in \(\mathrm{kJ} / \mathrm{kg}\).
(c) At \(p=28 \mathrm{MPa}, T=520^{\circ} \mathrm{C}\), find v in \(\mathrm{m}^3 / \mathrm{kg}\) and h in \(\mathrm{kJ} / \mathrm{kg}\).
(d) At \(T=10^{\circ} \mathrm{C}, v=100 \mathrm{~m}^3 / \mathrm{kg}\), find p in kPa and h in \(\mathrm{kJ} / \mathrm{kg}\).
(e) At \(p=4 \mathrm{MPa}, T=160^{\circ} \mathrm{C}\), find v in \(\mathrm{m}^3 / \mathrm{kg}\) and u in \(\mathrm{kJ} / \mathrm{kg}\).
Questions & Answers
QUESTION:
Using the tables for water, determine the specified property data at the indicated states. In each case, locate the state by hand on sketches of the p-v and T-v diagrams.
(a) At \(p=3 \mathrm{bar}, v=0.5 \mathrm{~m}^3 / \mathrm{kg}\), find T in \({ }^{\circ} \mathrm{C}\) and u in \(\mathrm{kJ} / \mathrm{kg}\).
(b) At \(T=320^{\circ} \mathrm{C}, v=0.03 \mathrm{~m}^3 / \mathrm{kg}\), find p in MPa and u in \(\mathrm{kJ} / \mathrm{kg}\).
(c) At \(p=28 \mathrm{MPa}, T=520^{\circ} \mathrm{C}\), find v in \(\mathrm{m}^3 / \mathrm{kg}\) and h in \(\mathrm{kJ} / \mathrm{kg}\).
(d) At \(T=10^{\circ} \mathrm{C}, v=100 \mathrm{~m}^3 / \mathrm{kg}\), find p in kPa and h in \(\mathrm{kJ} / \mathrm{kg}\).
(e) At \(p=4 \mathrm{MPa}, T=160^{\circ} \mathrm{C}\), find v in \(\mathrm{m}^3 / \mathrm{kg}\) and u in \(\mathrm{kJ} / \mathrm{kg}\).
ANSWER:Step 1 of 8
In order to solve this problem, we are going to use the tables for water and locate the state of the given states according to the given data. Those given data will determine if the state exists in the compressed-liquid area, in the liquid-vapor area, or in the overheated vapor area. Finally, we will be able to determine the required specified property data and sketch these states.
a)
According to the given data, using the tables for water given in the textbook, we can determine the temperature of the water as:
