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For the reactions, C + O2 → CO2 ; ΔH = –393J.

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asked Mar 29, 2018 in Chemistry by paayal (26,720 points) ● 4 ● 6 ● 11

For the reactions,
C + O2 → CO2 ; ΔH = –393J
2Zn + O2 → 2ZnO ; ΔH = –412J
(a) carbon can oxidise Zn
(b) oxidation of carbon is not feasible
(c) oxidation of Zn is not feasible
(d) Zn can oxidise carbon.

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answered Mar 29, 2018 by sanjaydas (61,430 points) ● 5 ● 7 ● 7
selected Apr 1, 2018 by Vikash Kumar
 
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(d) : ΔH = negative shows that the reaction is spontaneous. Higher value for ΔH shows that the reaction is more feasible.

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