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Consider the reaction N2 (g) + O2 (g) ? 2 NO (g)     ?H = +43 kcal/mol...

Consider the reaction N2 (g) + O2 (g) ? 2 NO (g)     ?H = +43 kcal/mol


Which of the following statements is true?

(1) Increasing the temperature will favor the forward reaction, and the concentration of NO (g) will be higher at equilibrium.
(2) Increasing the concentration of NO (g) will favor the forward reaction, and the concentrations of both N2 and O2 will be lower at equilibrium.
(3) Adding a catalyst will favor the forward reaction, and the concentration of NO (g) will be higher at equilibrium.
(4) Decreasing the pressure will increase the rate at which equilibrium is reached, but will have no effect on the final concentrations at equilibrium.

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Answer #1

ANSWER : 1 ) Increasing the temperature will favor the forward reaction , and the concentration of NO(g) will be higher at equilibrium .

REACTION : N2(g) + O2(g) -----------> 2NO(g) ; H = +43 KCal/mol

        In which the transformation of energy from one system to another is called Thermodynamics .

          Heat energy is designated as symbol H , the enthalpy change is H , difined as Hproducts-Hreactents .

      Endothermic reactions have a positive H .

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