تم الحل ✓
categoryهندسة ميكانيكية
schoolبكالوريوس
event_available2026-07-14
السؤال
Transcribed Image Text:
Problem 3 (5 points)
Consider the piston-cylinder arrangement sketched
in the figure. The mass of water is 2 kg and it is
initially at V₁ 0.02 m³, T₁ = 50 °C. The water is
heated and the piston; which is initially resting on
stops; starts to move only when the pressure inside
the cylinder is 100 kPa. The heating continues until
it reaches a final state of 200 °C. Show all your
work clearly.
water
m-2 kg
V₁-0.02 m²
T-50 °C
water
m-2 kg
T-200 °C
(a) Fill in the following table with all properties at states 1, 2, & 3.
(3 points)
3
m
Quality
P (kPa)
T (°C) v
V (m³)
Phase
kg
X
State 1
50
0.02
State 2
State 3
200
(b) Calculate the work done by the water, in kJ.
(1 point)
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