- #1
dillonmhudson
- 49
- 0
Homework Statement
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.
Homework Equations
[tex]\frac{dQ}{dt}[/tex]=rate in - rate out
The Attempt at a Solution
Why the heck do they cancel units incorrectly?