JAMB - Chemistry (1983 - No. 25)
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
(I) H2 (g) + 1/2O2(g) → H2O(l); ∆H = -286 KJ
(II) C(s) + O2g) → CO2 (g); ∆H = -406 KJ the equations imply that
more heat is absorbed in (l)
more heat is absorbed in (ll)
less heat is evolved in (l)
reaction (ll) proceeds faster than (l)
reaction (l) proceeds faster than (ll)