Question

the density of air at 20.0 km above earths surface is 92 g/m^3 the pressure is 42 mmHg and he temperature is -63 degrees Celsius. Assuming the atmosphere contains only O2 and N2 calculate (a) the average molar mass of the air at 20.0 km (b) the mole fraction of each gas

Name: the density of air at 200 km above earths surface is 92 gm3 the pressure is 42 mmhg and he temperature is 63 degrees celsius assuming the atmosphere contains only o2 and n2 calculate a the a 00404
Uploaded: 2023-03-13T22:11:46-08:00
Duration: 5 min 55 s
Channel: Supreeta N
Description: the density of air at 200 km above earths surface is 92 gm3 the pressure is 42 mmhg and he temperature is 63 degrees celsius assuming the atmosphere contains only o2 and n2 calculate a the a 00404

          the density of air at 20.0 km above earths surface is 92 g/m^3 the pressure is 42 mmHg and he temperature is -63 degrees Celsius. Assuming the atmosphere contains only O2 and N2 calculate (a) the average molar mass of the air at 20.0 km (b) the mole fraction of each gas

Added by Monica C.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Supreeta N

03/13/2023

Step 1

We need to convert the pressure to SI units (Pa) and the temperature to Kelvin: P = 42 mmHg = 5,600 Pa T = -63 + 273 = 210 K Substituting these values into the ideal gas law, we get: n/V = P/RT = (5,600 Pa)/(8.31 J/mol/K x 210 K) = 2.5 x 10^-4 mol/m^3 Show more…

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the density of air at 20.0 km above earths surface is 92 g/m^3 the pressure is 42 mmHg and he temperature is -63 degrees Celsius. Assuming the atmosphere contains only O2 and N2 calculate (a) the average molar mass of the air at 20.0 km (b) the mole fraction of each gas