the mole fraction of no2 and the partial pressure of no2 in this mixture is 0.438 atm
Calculation :
let n be the total number of mole of gas mixture
use,
P*V = n*R*T
1.75*50.0 = n*0.082*325
87.5 = n*26.65
n = 3.28 mole
molar mass of NO2 = 46 g/mol
number of mol of NO2 = (mass of NO2)/(molar mass of NO2)
= 37.7/46
= 0.82 mole
mole fraction of NO2 = (number of mol of NO2)/n
= 0.82/3.28
= 0.25
pNO2 = (mole fraction of NO2)*(total pressure)
= 0.25*1.75
= 0.438 atm
The force applied perpendicular to the surface of an object per unit area over which that force is distributed.
Pressure is standard machine size. Various units are used to express pressure. Some of these are units of force divided by units of area. For example, the SI unit of pressure, Pascal (Pa), is 1 Newton per square meter (N/m2). Similarly, pound-force per square inch (psi) is the traditional unit of pressure in imperial and US systems. Pressure can also be expressed as standard atmospheric pressure.
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