November 27, 2015

Homework Help: chemistry

Posted by trigger on Saturday, January 3, 2009 at 7:32pm.

Ammonia reacts with oxygen in the presence of a platinum catalyst to give nitric oxide and water, according to the following gas phase equilibrium:
4NH_3(g) + 5O_2(g) <---> 4NO(g) + 6H_2O(g) ÄH = −906 kJ mol^−1

What is an appropriate equilibrium expression for the reaction. What would the units of the equilibrium constant K be if the concentrations of all the gases in the equilibrium expression were measured in mol dm−3? And how do you determined your units for K using your equation.

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