The Diffusion Constant for Oxygen Diffusing Through Tissue Is 1 $\times$

Multiple Choice

The diffusion constant for oxygen diffusing through tissue is 1.0 $\times$ 10^-11 m²/s.In a certain sample oxygen flows through the tissue at 2.0 $\times$ 10^-6 kg/s.If the thickness of the tissue is doubled,then what is the rate of oxygen flow through the tissue?

A) 1.5 $\times$ 10^-6 kg/s
B) 1.2 $\times$ 10^-6 kg/s
C) 1.0 $\times$ 10^-6 kg/s
D) 0.6 $\times$ 10^-6 kg/s
E) 0.4 $\times$ 10^-6 kg/s