A Sample of Solid NH₄NO₃ Was Placed in an Evacuated

question 62

Multiple Choice

A sample of solid NH₄NO₃ was placed in an evacuated container and then heated so that it decomposed explosively according to the following reaction: NH₄NO₃(s) N₂O(g) + 2H₂O(g)
At equilibrium, the total pressure in the container was found to be 2.25 atm at a temperature of 500°C. Calculate K_p.

• A) 2.25.
• B) 5.06
• C) 45.6
• D) 1.69
• E) 2.25

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