Question

1. Alveoli are the tiny sacs of air in the lungs whose average diameter is 50 pm. Consider an oxygen molecule
trapped within a sac. Calculate uncertainty in the velocity of oxygen molecule?​

Answer 1

Dear students,

● Answer -

∆v = 19.88 m/s

◆ Explanation -

# Given -

∆x = 50 pm = 5×10^-11 m

m = 5.3×10^-26 kg

# Solution -

Uncertainty in the velocity of oxygen molecule is given by -

∆v = h / 4πm∆x

∆v = (6.62×10^-34) / (4×3.142 × 5.3×10^-26 × 5×10^-11)

∆v = 19.88 m/s

Therefore, uncertainty in the velocity of oxygen molecule is calculated by 19.78 m/s.

Hope I was useful.