Question

Given the Fractional Composition of our atmosphere (20.95% O2, 0.3% CO2, 78.1% N2), create a Table depicting the Partial Pressure of each of those three components every 1000 meters are you increase from 0 to 10000 meters above sea level. (4 points)

Answer 1

Height	Ptotal in KPa	Po2=0.2095*Pt	PN2=0.781*Pt	PCO2=0.03*Pt
0	101	21.15	78.88	3.03
1000	86	18.01	67.16	2.58
2000	80	16.76	62.48	2.4
3000	65	13.61	50.76	1.95
4000	60	12.72	46.86	1.8
5000	47	9.84	36.7	1.41
6000	43	9.0	33.58	1.29
7000	40	8.38	31.24	1.2
8000	38	7.96	29.67	1.14
9000	34	7.12	26.55	1.02
10000	32	6.7	25	0.96

From the Roults law we can write that

Partial pressure = Ptota*Yi

As the compostion of air is given and that can be assumed as constant over the given height.

Value of the total pressure at different heights is taken from literature.

Feel free to comment in the comment window in the case of any doubt.

Answer is subject to the value of the total pressure taken.

Thank you