Question

The two most abundant atmospheric gases react to a tiny extent at 298 K in the presence of a catalyst:N₂(g) + O₂(g) ⇆ 2NO(g) Kp = 4.35 ˣ 10⁻³¹a) What are the equilibrium pressures of the three gases when the atmospheric partial pressures of O₂ (0.210 atm) and of N₂ (0.780 atm) are put into an evacuated 1.00-L flask at 298 K with the catalyst?

Answer 1

A reversible reaction is defined as a chemical reaction where the reactants and the products react together to give the reactants back.

Reversible reaction

The reaction is:

H2​O+O⟶2OH ,      ΔH=−72kJ; Ea​=77kJ/mol

2OH⟶H2​O+O ,      Ea​=?   (Refer to Image)

Ea​ for the reverse reaction

=(Ea​)forward​+ΔH

=77+(−72)=5kJ

What is reverse reaction equation?

A reversible reaction is denoted by a double arrow pointing both directions in a chemical equation. For example, a two reagent, two product equation would be written as. A + B ⇆ C + D.  In simple words, we can say that it is a reaction involving the simultaneous conversion of reactants to products and vice versa.

To learn more about  reverse reaction visit the link

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