Solution: A typical breath is around 0.5 L, but to get 2 sig figs, let’s assume you breathe in 0.48 L. How much work is done when you exhale against an atmosphere pressure of 750 mmHg? Be sure to include a + or - sign in your answer.

Problem

A typical breath is around 0.5 L, but to get 2 sig figs, let’s assume you breathe in 0.48 L. How much work is done when you exhale against an atmosphere pressure of 750 mmHg? Be sure to include a + or - sign in your answer.