Answer
$2 qt/min = \frac{1}{120} gal/s$
Work Step by Step
$\frac{2 quarts}{minute} * \frac{1 minute}{60 seconds} = \frac{2 quart}{60 seconds}=\frac{1 quart}{30 seconds}$
$\frac{1 quart}{30 seconds} *\frac{1 gallon}{4 quarts} = \frac{1 gallon}{120 seconds}$
