Part . 1
Total pressure = 4.50 , atm
Suppose mole of each gas = x , mole
Than , total mole of gas mixture = 3x
Mole fraction of gas "Xe" = (x)/(3x) = 1/3
And , partial pressure of gas " Xe" = mole fraction * total pressure
= (1/3)*(4.50) , atm
= 1.50 , atm
Part. 2
Total pressure = 4.50 , atm
Mole of "Xe" = 1 mole
Mole of " H2 " = 1 mole
Total mole = 1+1 = 2 mole
Mole fraction of "Xe" = (1 mole)/(2 mole) = 1/2
Partial pressure of " Xe " = ( mole fraction)*(total pressure)
= (1/2)*(4.50 ), atm
= 2.25 , atm
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