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AP® Chemistry

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Difficult

Equalities

APCHEM-OLLEQY

In which of the following equilibrium systems will $Q = K$ and $K_c = K_p$ despite any changes in the volume of the container or pressure?

A

$2H_2O(g) ⇄ 2H_2(g) + O_2(g)$

B

$H_2(g) + S(s) ⇄ H_2S(g)$

C

$H_2(g) + Br_2(l) ⇄ 2HBr(g)$

D

$3H_2(g) + N_2(g) ⇄ 2NH_3(g)$