Water reacts with SO2 to converted into sulphuric acid as:
I: 2SO2+O2→2SO3
II: 2H2O+2SO3→H2SO4
Net reaction:
2H2O+2SO2+O2→2H2SO4
"or"
4H2O+4SO2+2O2→4H2SO4
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Similar Questions
Q1
S+O2→SO2;ΔH=−298.2kJ SO2+12O2→SO3;ΔH=−98.7kJ SO3+H2O→H2SO4;ΔH=−130.2kJ H2+12O2→H2O;ΔH=−227.3kJ The heat of formation of H2SO4 will be:
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Q2
Calculate the equivalent mass of H2SO4 from the given reactions. (a)H2SO4+NaOH→NaHSO4+H2O (b)H2SO4+2NaOH→Na2SO4+2H2O
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Q3
If S+O2→SO2;△H=−398.2kJ:SO2+12O2→SO3;△H=−98.7kJ
SO3+H2O→H2SO4;△H=−130.2kJ:H2+12O2→H2O,△H=−227.3kJ
The enthalpy of formation of sulphuric acid at 298 K will be:
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Q4
Balance the following equation by oxidation number method i) K2Cr2O7+KI+H2SO4→K2SO4+Cr2(SO4)3+I2+H2O ii) KMnO4+Na2SO3→MnO2+Na2SO4+KOH iii) Cu+HNO3→Cu(NO3)2+NO2+H2O iv) KMnO4+H2C2O4+H2SO4→K2SO4+MnSO4+CO2+H2O