Problem 11.9. A heat engine performs 200J of work in each cycle and has efficiency of 20 percent. For each cycle of operation a) How much heat is absorbed and b) How much heat is expelled?
Problem 11.9
A heat engine perform 200j of works in each cycle and efficiency of 20 percent for each cycle of operation.
1how much heat is absorbed ?
2hhow much is exploded?
Data (a
Δw=200j
E =20%
A) q1=?
B) q2 =?
Solution
E=Δw/Q1 ×100
20/100=200/Q1
Q1= 1000j. Answer
(B)
Solution
Δw=q1 -q2
200=1000 -q2
Q2= 800j ......answer