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At 4000m the pressure is hPA and in 8000m the pressure is 372 hPa. What effect...

At 4000m the pressure is hPA and in 8000m the pressure is 372 hPa. What effect does this have on the partial pressure? Why is it more difficult to breathe in these height?

Calculate for each height the moles per volume. (This is the reason for altitude sickness)


the pressure at 4000m is 614 hPa.

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