At 600 K, 2 mol of NO are mixed with 1 mol of :

The reaction comes to equilibrium under a total pressure of 1 atm. Analysis shows that 0.6 mol of oxygen are present at equilibrium. The equilibrium co

Question

At 600 K, 2 mol of NO are mixed with 1 mol of :

The reaction comes to equilibrium under a total pressure of 1 atm. Analysis shows that 0.6 mol of oxygen are present at equilibrium. The equilibrium constant  for the reaction is

Canvas Classes · Accepted Answer

Step 1 — ICE table (moles):

at equilibrium = 0.6 mol  reacted = 1 − 0.6 = 0.4 mol

| | NO | O₂ | NO₂ | Total |
|--|--|--|--|--|
| Initial | 2 | 1 | 0 | 3 |
| Change | −0.8 | −0.4 | +0.8 | |
| Equil. | 1.2 | 0.6 | 0.8 | 2.6 |

Step 2 — Mole fractions and partial pressures (P = 1 atm):

Step 3 — :

Answer: 1.69

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