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Consider the following system at equilibrium where ΔH° = 16.1 kJ, and Kc = 6.50x10^-3, at 298 K. 2NOBr(g) ⇌ 2NO(g) + Br2(g) If the VOLUME of the equilibrium system is suddenly increased at constant temperature: The number of moles of Br2 will: a) increase b) decrease c) remain the same