A mixture of NH3(g) and N2H4(g) is placed in a sealed container at 300 K. The total
Chapter 5, Problem 131(choose chapter or problem)
A mixture of \(\mathrm{NH}_{3}(g)\) and \(\mathrm{N}_{2} \mathrm{H}_{4}(\mathrm{g})\) is placed in a sealed container at 300 K. The total pressure is 0.50 atm. The container is heated to 1200 K at which time both substances decompose completely according to the equations \(2 \mathrm{NH}_{3}(g) \rightarrow \mathrm{N}_{2}(g)+3 \mathrm{H}_{2}(g)\); \(\mathrm{N}_{2} \mathrm{H}_{4}(g) \rightarrow \mathrm{N}_{2}(g)+2 \mathrm{H}_{2}(g)\). After decomposition is complete the total pressure at 1200 K is found to be 4.5 atm. Find the percent of \(\mathrm{N}_{2} \mathrm{H}_{4}(g)\) in the original mixture. (Assume two significant figures for the temperature.)
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