A rectangular concrete slab is 0.80m long, 0.60m wide, and 0.05m thick A- calculate its volume in m'2
B- the mass of the concrete slab is 60 kg. Calculate its density in kg/m'2

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The necleus of an atom is made up of what subatomic particles?

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.