Gas Equilibrium Constant

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Cynthia Tsang
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Gas Equilibrium Constant

Postby Cynthia Tsang » Mon Nov 27, 2017 9:13 pm

If given the reaction 2 NO2(g) + F2(g) <-> 2 FNO2(g) are the following equilibrium constants the same? If not, what are the differences and what units or information do you input into each one?

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Re: Gas Equilibrium Constant

Postby Chem_Mod » Mon Nov 27, 2017 10:25 pm

The equilibrium constants are slightly different due to one being measured in terms of pressures and the other being measured in terms of concentrations. The constants are indeed related however: Kp = Keq*(RT)^(∆n), where ∆n is the moles of gaseous products - moles of gaseous reactants. The constants are both unitless.

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