[cerez05]

Does increasing the temperature of the reversible reaction, N2 (g), + 3 H2(g) = 2NH3(g), shift the reaction to the left?  Please Explain.

In attempting to answer this question, I became confused with the concept of the shifting equilibrium.  My first instinct was that it shifts Right but i am not sure about this.

[Mitch]

Are you sure N2 is aqueous?  

[cerez05]

My mistake, I modified the question.

[AWK]

Still traction is incorrect - NH2(g)

[cerez05]

gosh u know what i mean....

[AWK]

Formation of ammonia is an exothermic reaction (-46 KJ/mol), hence heating shift the reaction to the left.

[Donaldson Tan]

Le Chaterlier's Principle states that a system in equilibrium will tend to counter the stress acting on the system. if the stress is increasing the pressure, the system will shift such that there will be a reduction in pressure. if the stress is heat, the system will shift in equilibrium such that there will be less heat. hence, an increase in temperature will favour the endothermic reaction, ie. your backward reaction.

[cerez05]

Alright thank you I understand