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If the atmospheric pressure at sea level is 7.5 N/cm2, determine the pressure at a height of 3000m assuming the pressure variation follows isothermal law. The density of air is given as 1.2 km/m3.

If the atmospheric pressure at sea level is 7.5 N/cm2, determine the pressure at a height of 3000m assuming the pressure variation follows isothermal law. The density of air is given as 1.2 km/m3. Correct Answer 4.68 N/cm2

pressure at any height Z = p*e-gZ/RT =75000*e -9.81*3000*1.2/75000 = 4.68 N/cm2.

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