く) 70111 Part A How much heat is exhausted to the cold reservoir by the heat…
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Question “く) 70111 Part A How much heat is exhausted to the cold reservoir by the heat…”
Answer
The area enclosed by a loop is where the engine does its work in a cyclic process.
W = Area of Triangle
W = (1/2), (600-300 )(300-100)
W = 3 X 104 Kpa cm3
W = 3 X10 4 1000 X10 -6 3
W = 30 J
Heat supplied Q = Q 1 +Q 2
Q = 100 +250
Q = 350 J
A cyclic process is one in which gas remains at the same stage after each cycle. Therefore, internal enery is constant after each cycle.
First law of thermodynamics
350 – Q = 30
Q o =350-30 = 320 J
The heat lost to the cold reservoir is 320J
Conclusion
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