H2 (g) + br2 (g) < => 2 hbr (g)

the equilibrium constant is 13485. at equilibrium the h2 concentration is 0.05 m, while the br2 concentration is 0.023 m. calculate the hbr concentration at equilibrium, to 1 decimal. be careful with the units.

[HBr] = 4.7M at equilibrium

Explanation:

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.

Ithink it's the third answer