Answer:
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Explanation:
Power supplies used in desktop computers many years ago, commonly referred to as AT, had a power switch that switched on the 120
1 answer:
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Answer:
The total mass in the tank = 0.45524 kg
The amount of heat transferred = 3426.33 kJ
Explanation:
Given that:
The volume of the tank V = 0.06 m³
The pressure of the liquid and the vapor of H2O (p) = 15 bar
The initial quality of the mixture
By applying the energy rate balance equation;
where;
Thus,
If we integrate both sides; we have:
We obtain the following data from the saturated water pressure tables, at p = 15 bar.
Since:
Then:
Hence;
Similarly; we obtained the data for from water pressure tables at p = 15 bar
Hence;
However; the initial mass can be calculated by using the formula:
From the question, given that the final quality;
Also;
Then the final mass can be calculated by using the formula:
Thus; the total mass in the tank = 0.45524 kg
FInally; from the previous equation (1) above:
Q = [(0.45524)(2594.5) -(2.1994)(1193.428)-(2792.2)(0.45524-2.1994)]
Q = [ 1181.12018 - 2624.825543 - (2792.2)(-1.74416 )]
Q = 3426.33 kJ
Thus, the amount of heat transferred = 3426.33 kJ