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From the following data, C(graphite) + O2(g) → CO2(g) AHrxn = -393.5 kJ/mol H2(g) + O2(g)...

From the following data, C(graphite) + O2(g) → CO2(g) AHrxn = -393.5 kJ/mol H2(g) + O2(g) → H200) AHrxn = -285.8 kJ/mol 2C2H



From the following data, C(graphite) + O2(g) → CO2(g) AHrxn = -393.5 kJ/mol H2(g) + O2(g) → H200) AH"rxn = -285.8 kJ/mol 2C2H6(g) + 702(g) -> 4CO2(g) + 6H2O(l) Arxn=-3119.6 kJ/mol Calculate the enthalpy change for the reaction: 2 C(graphite) + 3H2(g) + C2H668)
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Answer #1

cog) a) mulh bly the eq by (2) 2c +2029) 2c02(9) 2 (-393-5kJ/mol). ΔΗ - (b) H29) (9) H20 LA) 285.8 KJ/mo 2 Multply the ea byR -393.5) (-285.3)3 -+ 3119.6 k3/mol 84.6 KJ/mol Ang

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Answer #2

Answer will be -84.6 kJ/mol not positive 

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