Saturated steam at 1(atrn) and 100(C is continuously generated from liquid water at 1(atm) and 25(C by thermal contact with hoi air in a counterflow heat exchanger. The air flows steadily at l(atm). Determine values for m (steam)/n(air) for two cases:
(a) Air enters the exchanger at 1,000(C.
(b) Air enters the exchanger at 500(C.
For both cases, assume a minimum approach (T for heat exchange of 10(C.