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The cute, ground-dwelling chipmunks are members of the squirrel family and are considered pests for all homeowners. Chipmunks always seek a habitat that provides them with shelter and comfort, they build extensive burrow systems next to or directly beneath natural or man-made settings.

Assume the minimum respiration rate of a chipmunk () = 1.5 micromoles of O2/min. The concentration of Oxygen (A) at the bottom of the hole is CAL = 0.03 mol/m3.

The hole is cylindrical with a diameter = 3 cm. DAB = 1.8 105 m2/s. What is the deepest a chipmunk can burrow a hole beneath the surface? Hint: Calculate CA0 using the ideal gas equation P = 1 atm, T = 298 K, and fraction of O2 in air = 0.21.

CA, PT L=0 NAN NAN CAI, PJ I = LW