Nitrogen Trifluoride Decomposes to Form Nitrogen and Fluorine Gases According

question 82

Multiple Choice

Nitrogen trifluoride decomposes to form nitrogen and fluorine gases according to the following equation:
2NF₃(g)
N₂(g) + 3F₂(g)
When 2.54 mol of NF₃ is placed in a 6.00-L container and allowed to come to equilibrium at 800 K,the mixture is found to contain 0.0434 mol of N₂.What is the value of K_p at this temperature? (R = 0.0821 L · atm · mol^-1 · K^-1)

• A)1.54 × 10^-5
• B)1.91 × 10^-3
• C)1.78 × 10^-3
• D)1.59 × 10^-5
• E)4.43 × 10^-7

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