Three carnot engines operate between the following temperature limits.
a) 400 and 500 k
b) 500 and 600 k
c) 400 and 600 k
each engine extracts the same amount of energy per cycle from the high-temperature reservoir. rank the magnitudes of the work done by the engines per cycle, greatest first. (note: use only the symbols > or = , for example b> a=c.)