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Tuesday, 07 April 2026
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In the reactions (I) H2 (g) + 1/2O2(g) → H2O(l); ...

In the reactions
(I) H2 (g) + 1/2O2(g) → H2O(l); ∆H = -286 KJ
(II) C(s) + O2g) → CO2 (g); ∆H = -406 KJ the equations imply that
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  • A More heat is absorbed in (l)
  • B More heat is absorbed in (ll)
  • C Less heat is evolved in (l)
  • D Reaction (ll) proceeds faster than (l)
  • E Reaction (l) proceeds faster than (ll)
Correct Answer: Option C
Explanation:

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