Properties of the Equilibrium Constant

AP Chemistry· difficulty 4/5

N2(g) + 3 H2(g) <-> 2 NH3(g) Kp = Kc (RT)^(dn) dn = moles gas products - reactants = 2 - (1 + 3) = ? Kp = Kc (RT)^?

What is dn (and the exponent on RT)?

  • A

    +2

  • B

    0

  • C

    +1

  • D

    -2

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Explanation

dn = 2 - (1 + 3) = -2. So Kp = Kc (RT)^-2.

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