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AP and TS EAMCET Medical 2020 Model Paper 3

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Question : 137 of 159
 
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If enthalpies of formation for C2H4(g),CO2(g) and H2O(l) at 25°C and 1 atm pressure are 52, - 394and - 286 KJ/mol respectively, then enthalpy of combustion of C2H4(g) will be
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