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14.(1)CH 2 CH2 +H2SO4(Ý →) C2H5OSO3H、
C2H5OSO3H+H2 →O C2H5OH+H2SO4
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15.(1)-282.6kJ·mol-1
(2)-57.3kJ·mol-1
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-1096.7kJ·mol-1
(4)①SO2+2NaCl+O2
△
Na2SO4+Cl2
②H2O2(l)+Cl2(g ) 2HCl(g)+O2(g) ΔH=
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16.(1)
r
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