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On the basis of Le Chatelier principle e...

On the basis of Le Chatelier principle explain how temperature and pressure can be adjusted to increase the yield of ammonia int he following reaction.
`N_2(g)+3H_2(g)hArr2NH_3(g), DeltaH=-92.38KJ Mol^(-1)`
What will be the effect of addition of argon to the avove mixture at cosntant volume ?

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