Two identical double-pipe heat exchangers are available for the heating of an organic liquid at a given mass flow rate m, from an inlet temperature of Ti to an outlet temperature. Flow regime is turbulent. Saturated steam at Ts is used as the heating medium flowing through annulus. Organic liquid flows through the inner tube. In which of the following two cases do you expect a higher outlet temperature of the organic liquid and why? Discuss in detail and support your discussion with calculations

. a) Heat exchangers are connected in series;

b) Heat exchangers are connected in parallel.