Solution: Bond Enthalpies (Section)Using Table estimate ?H

Chapter , Problem 71E

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QUESTION:

Bond Enthalpies (Section 8.8)

Using Table 8.4, estimate ΔH for each of the following reactions:

(a) 2CH4 (g) + O2 (g) ⟶ 2CH3OH (g)

(b) H2 (g) + Br2 (l) ⟶ 2HBr (g)

(c) 2H2O2 (g) ⟶ 2H2O (g) + O2 (g)

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QUESTION:

Bond Enthalpies (Section 8.8)

Using Table 8.4, estimate ΔH for each of the following reactions:

(a) 2CH4 (g) + O2 (g) ⟶ 2CH3OH (g)

(b) H2 (g) + Br2 (l) ⟶ 2HBr (g)

(c) 2H2O2 (g) ⟶ 2H2O (g) + O2 (g)

ANSWER:

Step 1 of 4

Enthalpy change is the name given to the amount of heat evolved or absorbed in a reaction carried out at constant pressure.

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