General Chemistry Answers

1)  Many chemical processes release waste products into the atmosphere. Scientists are developing new solid catalysts to convert more efficiently these emissions into useful products, such as fuels. One example is a catalyst to convert these emissions into methanol. The catalyst is thought to work by breaking a H–H bond.

          An equation for this formation of methanol is given below.

          CO2(g) + 3H2(g) CH3OH(g) + H2O(g) ∆H = −49 kJ mol−1

(a)        Use the enthalpy change for the reaction and data on bond entahlpies to    calculate a value for the C=O bond enthalpy. 

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The equilibrium mixture is found to contain 0.07,0.11,0.03 and 0.03 moles of CO,H2CH4 and H2O respectively for the reaction: CO(g) +3H2(g)O CH4(g)=H2O(g).