Question

Can y’all please help with this? :(

Answer 1

P Ar = 1.5

P Xe = 0.5

P tot = 2 atm

Further explanation  

Dalton's law of partial pressures states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the component gases  

Can be formulated:  

P tot = P1 + P2 + P3 ....  

The partial pressure is the pressure of each gas in a mixture  

3 L Argon , P = 1 atm and 1 L Xe, P=1 atm⇒assume T = 273 K

mol Argon :

$\tt n_{Ar}=\dfrac{PV}{RT}=\dfrac{1\times 3}{0.082\times 273}=0.134$

mol Xenon :

$\tt n_{Xe}=\dfrac{1\times 1}{0.082\times 273}=0.045$

$\tt P_{Ar}=\dfrac{nRT}{V}=\dfrac{0.134.0.082.273}{2}=1.5$

$\tt P_{Xe}=\dfrac{nRT}{V}=\dfrac{0.045.0.082.273}{2}=0.5$

P tot = 1.5 + 0.5 = 2 atm