Question

Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist studying this reaction fills a 5.0L flask with 1.7atm of ammonia gas at 51.0°C. He then raises the temperature, and when the mixture has come to equilibrium measures the amount of nitrogen gas to be 0.34atm.

 

 

atm

.

Calculate the pressure equilibrium constant for the decomposition of ammonia at the final temperature of the mixture. Round your answer to 

2

 significant digits.