Exhibit 14-1
The following question(s) pertain to the equilibrium 2NO(g) + 2H₂(g) → N₂(g) + 2H₂O(g) with initial partial pressures of P_NO=0.3 atm, $\mathrm{P}_{\mathrm{H}_{2}}$ =0.4 atm, $\mathrm{P}_{\mathrm{H}_{2} \mathrm{O}}$ =0.4 atm.
Refer to Exhibit 14-1. At a certain temperature equilibrium is established and it is determined that the partial pressure of water is 0.228 atm. What are the equilibrium partial pressures of NO, H2, and N2 respectively?

Question

Exhibit 14-1
The following question(s) pertain to the equilibrium 2NO(g) + 2H₂(g) → N₂(g) + 2H₂O(g) with initial partial pressures of P_NO=0.3 atm,

\mathrm{P}_{\mathrm{H}_{2}}

=0.4 atm,

\mathrm{P}_{\mathrm{H}_{2} \mathrm{O}}

=0.4 atm.
Refer to Exhibit 14-1. At a certain temperature equilibrium is established and it is determined that the partial pressure of water is 0.228 atm. What are the equilibrium partial pressures of NO, H2, and N2 respectively?

Quizplus · Accepted Answer

The change in partial pressure of H2O is 0.4 - 0.228 = 0.172 atm. Since the stoichiometry of the reaction shows that 2 moles of NO and 2 moles of H2 produce 2 moles of H2O, the change in NO and H2 is also 0.172 atm. Therefore, the equilibrium partial pressures are: P_NO = 0.3 - 0.172 = 0.128 atm, P_H2 = 0.4 - 0.172 = 0.228 atm, and P_N2 = 0 + 0.172 = 0.172 atm.

Exhibit 14-1 the Following Question(s) Pertain to the Equilibrium 2NO(g) PH2\mathrm{P}_{\mathrm{H}_{2}}PH2​​

Exhibit 14-1
the Following Question(s) Pertain to the Equilibrium 2NO(g) $\mathrm{P}_{\mathrm{H}_{2}}$