Use the graph on the right to answer the following questions

Use the graph on the right to answer the following questions. a. Estimate the pressure at altitudes of 6, 000 feet, 12, 000 feet, and 21, 000 feet. b. Estimate the altitudes at which the pressure is 23, 16, and 11 inches of mercury. c. Estimating beyond the boundaries of the graph, at what altitude do you think the atmospheric pressure reaches 5 inches of mercury? Is there an altitude at which the pressure is exactly zero? Explain your reasoning. a. The pressure at 6, 0000 feet is inches of mercury, the pressure at 12, 000 feet is inches of mercury, and the pressure at 21, 000 feet is inches of mercury.

Solution

looking at the graph and calculating :

at 6000 feet it will be 25 atm

at 12, 000 feet it will be 18 atm ( since here the slope is rapidly dereasing

at 21,00 feet it will be 11 atm (approx.)

2. a the altitude at which pressure is 23, 16, 11 is 9000 ft , 15000 ft, 20, 000 ft

3. atm pressure reaches the mark of 5 atm at 80,000 ft , if the graph follows the same trend as above

yes pressure can be exactly equal to zero at around 130, 000 ft if the graph follows the same behaviour as it is following now.

note all bove values are based on approximation only