Law of mass action

  • #1
physics_newbi
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A mixture of one part nitrogen and three parts hydrogen is heated to a temperature of 773 Kelvin. Use the law of mass action to calculate the fraction of nitrogen that is converted (atom to atom) to ammonia if the final total pressure is 400 bar. As alwyas, use 1 bar for the reference pressure, and assume for simplicity that the gases behave ideally. The equilibrium constant K = exp(-dG/RT) at 773 K is 6.9X10-5.

Can someone please give me a hint on how to approach this problem
 

Answers and Replies

  • #2
HallsofIvy
Science Advisor
Homework Helper
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The best 'approach' is to first right down the "law of mass action'! Exactly what does it say?
 

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