A powerplant burns coal at 830 K and exhausts to air 288 K. If it runs at the Carnot Efficiency (e=1-(Qc/Qh)), how much input heat must be fed into the plant to produce 230000 J of work?
+37097 Here is my stab at it:
1- Qc/Qh =~ 1 - 288/830 = .653 or 65.3 % effeicient (the Carnot effic = (Th-Tc)/Th )
65.3/100 = 230000/x
x = 353846 j input needed
+37097 Here is my stab at it:
1- Qc/Qh = 1 - 288/830 = .653 or 65.3 % effeicient
65.3/100 = 230000/x
x = 352214 j input needed (Note: slight change in final answer calculation)
