If 4800 × 10^-5 mol of Uranium-238 at 4500 K Effuses

Multiple Choice

If 4.800 × 10^-5 mol of uranium-238 at 4500 K effuses through a hole in 125 seconds,how many mol of uranium-235 will effuse through the same hole,at the same temperature and in the same amount of time?

A) 4.74 × 10^-5 mol
B) 4.77 × 10^-5 mol
C) 4.80 × 10^-5 mol
D) 4.86 × 10^-5 mol
E) 4.83 × 10^-5 mol