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a) Suppose alcohol is introduced into a 2-liter beaker, which initially contains pure water, at the...

a) Suppose alcohol is introduced into a 2-liter beaker, which initially contains pure water, at the rate of 0.1 L/min. The well-stirred mixture is removed at the same rate. i) How long does it take for the concentration of alcohol to reach 50%? 75%? 87.5 %? ii) Suppose the current concentration of water in the beaker is c and we ask how long it takes before the concentration is cut in half. Is this time interval the same, regardless of c?

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