1. Tardigrade
  2. Question
  3. Chemistry
  4. For the reaction, C + O2 → CO2; Δ H= -393 J 2Zn + O2 → 2ZnO; H = - 412 J Which one is correct?

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Q. For the reaction,
$C + O_2 \to CO_2; \Delta H= -393 J$
$2Zn + O_2 \to 2ZnO; H = - 412 J$
Which one is correct?

Thermodynamics

Solution:

$ZnO + C \to Zn + CO$