[填空题]
Estimate the time needed for a glycine76 6sxe f)dpw w/2iky m6k-byh molecule (se0 ki) e vs*h/py,spi9eyqgqtg77 1 m.ee Table 13–4) to diffuse a distance o hvt )9qse,/qp*0p. eim1ie77ysgk ygf 15 $\mu m$ in water at 20$^{\circ} $ C if its concentration varies over that distance from 1 mol/$m^3$ to 0.4 mol/$m^3$ Compare this “speed” to its rms (thermal) speed. The molecular mass of glycine is about 75 u. t $\approx$ s ([color=rgba(0, 0, 0, 0.85)]Round to one decimal places) $v_{diffuse}$ $ \times10^{ -5}$ m/s
$v_{rms}$ m/s