Question 6: Methanol is a clean burning liquid fuel proposed as a replacement fo

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Question 6: Methanol is a clean burning liquid fuel proposed as a replacement for gasoline. Suppose it could be produced by the controlled reaction of the oxygen in the air with methane. Find the standard reaction enthalpy for the formation of 1 mol CH30H() from methane and oxygen, given the following information: (3 points)

(1) CH4(g) + H2O(g) -> CO(g) + 3 H2(g) delta Ho 206.10 kJ

(2) 2 H2(g) + CO(g) -> CH3OH delta Ho= - 128.33 kJ

(3) 2 H2(g) + O2 (g) -> 2 H2O(g) delta Ho= - 483.64 kJ

Methanol is a clean burning liquid fuel proposed as a replacement for gasoline. Suppose it could be produced by the controlled reaction of the oxygen in the air with methane. Find the standard reaction enthalpy for the formation of 1 mol CH_3OH(l) from methane and oxygen, given the following information: CH_4(g) + H_2O(g) rightarrow CO(g) + 3 H_2(g) Delta H degree = +206.10 kJ 2 H_2(g) + CO(g) rightarrow CH_3OH (l) Delta H degree = - 128.33 kJ 2 H_2(g) + O_2 (g) rightarrow 2 H_2O(g) Delta H degree = - 483.64 kJ

Explanation / Answer

(1) 2CH4(g) + H2O(g) -> CO(g) + 3 H2(g) delta Ho 206.10 kJ

(2) 2 H2(g) + CO(g) -> CH3OH delta Ho= - 128.33 kJ

(3) 4 H2(g) + O2 (g) -> 2 H2O(g) delta Ho= - 483.64 kJ

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