(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Consider a tank used in certain hydrodynamic experiments. After one experiment the tank contains 200 liters of a dye solution with a concentration of 1 g/liter. To prepare for the next experiment, the tank is to be rinsed with fresh water flowing in at a rate of 2 liters/min, the well-stirred solution flowing out at the same rate. Find the time that will elapse before the concentration of dye in the tank reaches 1% of its original value.

2. Relevant equations

[tex]\frac{dQ}{dt}[/tex]=rate in - rate out

3. The attempt at a solution

Why the heck do they cancel units incorrectly?

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# DE: Unit Cancellations Not Making sense

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