For the equilibrium the value of is at a certain temperature

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

Problem

For the equilibrium R(g)⇌P(g)R(g) \rightleftharpoons P(g) the value of log⁡10Kc\log_{10}K_c is −0.30-0.30 at a certain temperature. Three different sealed containers at that temperature contain the following particle counts: • Diagram A: 6 R and 2 P • Diagram B: 4 R and 2 P • Diagram C: 2 R and 6 P Identify which diagram (A, B, or C) best represents a system that is at equilibrium.

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