# s ra so2

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Standard XII

Mathematics

Cramer's Rule

if S + O2—-> ...

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Q. If S+O2SO2 ; ΔH=298.2
SO2+12O2SO3 ; ΔH=98.7
SO3+H2OH2SO4 ; ΔH=130.2
H2+12O2H2O ; ΔH=287.3
Then the enthalpy of formation of H2SO4 at 298 K is

Q. If S+O2SO2;ΔH=298.2kJ

SO2+1/2O2SO3;ΔH=98.7kJ

SO3+H2OH2SO4;ΔH=130.2kJ

H2+1/2O2H2O;ΔH=287.3kJ

Then the enthalpy of formation of H2SO4at298K is :

Q. If S+O2SO2,H=298.2 kJ mole1
SO2+1/2O2SO3,H=98.7 kJ mole1
SO3+H2OH2SO4,H=130.2 kJ mole1
H2+1/2O2H2O,H=287.3 kJ mole1
the enthalpy of formation of H2SO4 at 298 K will be ?

Xem thêm: fes + h2 so4

Q. If S+O2SO2; ΔH=398.2 kJ: SO2+12O2SO3; ΔH=98.7 kJ
SO3+H2OH2SO4; ΔH=130.2 kJ : H2+12O2H2O; ΔH=227.3 kJ
The enthalpy of formation of sulphuric acid at 298 K will be?

Q. If :

S+O2SO2; ΔH=298.2kJ
SO2+12O2SO3; ΔH=98.7kJ
SO3+H2OH2SO4; ΔH=130.2kJ
H2+12O2H2O; ΔH=227.3kJ

the enthalpy of formation of H2SO4 at 298K will be.

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