During exercise the volume of a human lung can increase by as much as 15%. If the bulk modulus for a lung is 3.00 kN/m², what is the change in the pressure? A) +0.450 Pa B) -0.450 Pa C) 0 D) -450 Pa E) +450 Pa

Question

Quizplus · Accepted Answer

The change in pressure is calculated using the formula ΔP = -B(ΔV/V), where B is the bulk modulus and ΔV/V is the fractional change in volume. Here, ΔV/V = 0.15 and B = 3000 N/m², so ΔP = -3000 * 0.15 = -450 Pa.

During Exercise the Volume of a Human Lung Can Increase