In the reactions (I) H2 (g) + 1/2O2(g) → H2O(l); ∆H = -286 KJ (II)...

JAMB 1983

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

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)

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Correct Answer: Option C

Explanation

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In the reactions (I) H2 (g) + 1/2O2(g) → H2O(l); ∆H = -286 KJ (II)...

Correct Answer: Option C

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