The total pressure for a mixture of N2O4 and NO2 is 1.5atm. If Kp = 7.1 at 25°C, calculate the partial pressure of each gas in the mixture. (HINT 1.5 = 2pNO2 + pN2O4) 2NO2 (g) = N2O4 (g)

: 0.5 atm and : 1 atm

Explanation:

In order to calculate the partial pressure for each gas , all you need to do is multiply the mole fraction of each gas with the total pressure.

It is given that = 1.5 atm

The mole fraction of each gas can be calculated in the following way:

= moles of ÷ total moles present =

= moles of ÷ total moles present =

Partial pressure of : 1.5 × = 0.5 atm

Partial pressure of : 1.5 × = 1 atm

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