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23-08-2022
Chemistry

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Styrene is produced by catalytic dehydrogenation of ethylbenzene at high temperature in the presence of superheated steam.(a) Find ΔHrxn°, ΔGrxn° and ΔSrxn° , given these data at 298 K:Compound ΔHf° ΔGf° S°(kJ/mol) (kJ/mol) (J/mol . K)Ethylbenzene, C₆H₅-CH₂CH₃ -12.5 119.7 255Styrene, C₆H₅-CH=CH₂ 103.8 202.5 238

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