Nitric acid can be produced from NH3 in three steps process:
I) 4NH3(g) + 5O2(g) → 4NO(g)+ 6H2O(g) .
II) 2NO(g) + O2(g) → 2NO2(g) .
III) 3NO2(g) + H2O(l) → 2HNO3(aq) + NO(g).
Percentage yield of Ist, IInd and IIIrd are respectively
50%, 60% and 80% respectively. What volume of NH3(g) at STP required to produced 1575 kg of HNO3?
Please give proper explanation
Answers
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Answer:
Fullexplanation
Explanation:
Ostwald process for the manufacture of nitric acid-
Step 1: Catalytic Oxidation of Ammonia
A mixture of dry air and dry ammonia in the ratio is compressed by a volume of 1: 1 and then passed in a platinum mist which acts as a catalyst 8 0 0 ℃.
4 nh
3
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+5 o
2
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⟶4 N O + 6 H
2
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O + summer
Step 2: Oxidation of Nitric Oxide
Nitrogen oxide combines with oxygen to form nitrogen dioxide at 50 ° C.
2n + o
2
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एन2no
2
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Step 3: Absorption of nitrogen dioxide in water
Nitrogen dioxide and oxygen present in the air react with water to form nitric acid.
4 nd
2
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+2h
2
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O + O
2
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4
nitric acid
4 HNO
3
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In the same way, there are many more.
The obtained nitric acid is concentrated above 5 0%. Upon further distillation, 6 8% nitric acid is produced.