Question

if the diffusion rate of one crystal of potassium permanganate within a liquid is 240 mm/hour, predict how far one crystal of potassium permanganate would diffuse within 10 minutes?
multiple choice
10 mm
4 mm
44 mm
60 mm
40 mm

Explanation:

Step1: Convert time to hours

10 minutes = $\frac{10}{60}=\frac{1}{6}$ hours

Step2: Use distance - rate formula

Distance = Rate×Time. Rate = 240 mm/hour, Time = $\frac{1}{6}$ hours. So Distance = 240×$\frac{1}{6}$ = 40 mm

Answer:

E. 40 mm