Answer to Question #259829 in Mechanical Engineering for Jool

Question

A hiker is carrying a barometer that measures 29.92inHg absolute at the base of the mountain. The barometer reads

25.5inHg absolute at the top of the mountain. The average air density is 0.076 lbm/ft3, the gravitational acceleration remains constant at 32.174 ft /s2. What is the mountain’s height?

Answer 1

The height is

$$h=\Delta p/(\rho g)=4115.87\text{ ft}.$$