Question

-4.73kJ/mol at 298 K for the reaction 3. ArG 2NO2(g)N2O4(g) If the initial pressure of pNO, =2.00 x 104 Pa and there is no N2
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Answer #1


\Delta G0    = -4.73KJ/mole

             = -4730J/mole

\DeltaG0     = -RTlnKp

-4730    = -8.314*298lnJp

lnKp   = -4730/(-8.314*298)

lnKp   = 1.91

Kp    = 6.753

-------- 2NO2(g) --------------> N2O4(g)

I ----   2*10^4 ----------------   0

C ----- -2x ------------------    x

E ---- 2*10^4-2x ----------- x

Kp   = PN2O4/P^2NO2

6.753 = x/(2*10^4-2x)

6.753*(2*10^4-2x) = x

x eq = 9310Pa

PN2O4   = 9.31*10^3 Pa >>>>answer

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