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प्रश्न
Write the conditions to maximize the yield of H2SO4 by contact process.
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उत्तर
Manufacturing of sulphuric acid via the contact process involves three steps:
(1) Burning of ores to form SO2
(2) Conversion of SO2 to SO3 using V2O5 as a catalyst
(3) Absorption of SO3 in H2SO4 to give oleum
The second step, i.e. conversion of SO2 to SO3 is the key step. Since this reaction is exothermic in nature and two moles of gaseous reactant give one mole of gaseous product. Thus, in accordance with Le Chatelier's principle, to obtain the maximum amount of SO3, low temperature and high pressure are required.
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संबंधित प्रश्न
What is molecular formula of oleum?
(a) H2SO3
(b) H2SO4
(c) H2S2O7
(d) H2S2O8
Describe the manufacture of H2SO4 by contact process?
Write balanced equations for NaCl is heated with sulphuric acid in the presence of MnO2
What is the action of concentrated sulphuric acid on copper
What is the action of concentrated sulphuric acid on potassium chlorate?
Complete and balance the following equations:
S+H2SO4(conc.) →
Write the formula for pentaamminechlorocobalt (III) sulphate.
Write the reaction of conc. H2SO4 with sugar.
Which of the following reaction is NOT involved in contact process used for manufacturing sulfuric acid?
Identify the INCORRECT statement about H2SO4.
Gas 'X' is prepared by treating sodium sulfite with dilute sulfuric acid. When gas 'X' is oxidised by dioxygen in presence of vanadium (V) oxide, gas 'Y' is formed. Identify X and Y.
The sulfuric acid obtained by contact process is ____________ % pure.
Which among the following catalysts is used in manufacture of sulphuric acid by contact process?
What is the ratio of volumes of gases involved in the preparation of sulphur trioxide from sulphur dioxide and dioxygen respectively under similar conditions of temperature and pressure?
Hot conc. \[\ce{H2SO4}\] acts as the moderately strong oxidising agent. It oxidises both metals and non-metals. Which of the following element is oxidised by conc. \[\ce{H2SO4}\] into two gaseous products?
What is the catalyst used for the oxidation of SO2 to SO3 in the lead chamber process for the manufacture of sulphuric acid?
