Two technicians are discussing what could be the cause of slow cranking and excessive current draw. technician a says that an engine mechanical fault could be the cause. technician b says that the starter motor could be binding or defective. which technician is correct? a) technician a onlyb) technician b onlyc) both technicians a and bd) neither technician a nor b

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.