Engineering, 09.04.2021 04:20, sophiamoser
A bankrupt chemical firm has been taken over by new management. On the property they found a 10,000 m3 brine pond containing 35 mg/L of organic matter. The new owners propose to flush the pond into their discharge pipe leading to a nearby treatment plant. During the flush, the decay of the organic matter follows first-order reaction kinetics with a rate constant k of 0.1 d-1. Assuming the system is completely mixed but is under non-steady state conditions, what flow rate of freshwater (in m3/h) must they use to reduce the organic matter concentration in the pond to 0.5 mg/L in 30 d?
Answers: 1
Engineering, 04.07.2019 18:10, qwertylol12345
Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.
Answers: 2
Engineering, 06.07.2019 04:10, trist22
An inventor claims to have developed a reversed heat engine (ie. a heat pump) which is able to deliver 10 kj heat into the room at 20°c from outside ambient temperature of -10°c by consuming only 2 kj electricity in winter. this claim is a)-impossible b)-possible only if the heat pump is ideal c)-practically possible d)-unable to be assessed as it depends on the working fluid used in the heat pump.
Answers: 2
A bankrupt chemical firm has been taken over by new management. On the property they found a 10,000...
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