EXAMIANS
In ammonia synthesis (N₂ + 3H₂ = 2NH₃), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should be carried out at
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Lower temperature and large excess of ammonia in urea melt
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Which of the following gasifiers can be attached to coal based fertiliser plants?
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With increases in pressure, the conversion of ammonium carbamate into urea
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__________ is not a fertiliser.
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H₄P₂O₇ is the chemical formula of __________ phosphoric acid.
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Multistage operation (as in the case of catalytic oxidation of SO₂) is not carried out for NH₃ synthesis, because of
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Biuret formation in urea is kept at minimum (< 1 %), because it is
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Ammonium nitrate is
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Use of catalyst is a must in the ammonia manufacture, because the reaction is reversible as well as the heat of dissociation of N₂ & H₂ is high. The presence of promoter along with the catalyst helps in __________ of the catalyst.
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