At 298 K the following elementary equilibria are established: Step 1: A(g) ⇌ B(g)…

CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

At 298 K the following elementary equilibria are established: Step 1: A(g) ⇌ B(g) K1=4.0×102K_1 = 4.0\times10^{2} Step 2: B(g) ⇌ C(g) K2=3.0×10−3K_2 = 3.0\times10^{-3} Determine the equilibrium constant, KK, for the overall reaction A(g) ⇌ C(g) at 298 K. Provide your answer to two significant figures.

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