marry Lou is running errands for her mother. She leaves her house and goes 1 mile north to the bakery she then goes 2.5 miles south to get her hair cut she countiues south 1.5 miles to check out a book from the library she then goes 0.75 miles north to meet a friend. This entire voyage lasts 3 hours what is the toatal displacement

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.