Energy from fuels

What is the sum of the coefficients when this equation is balanced with the smallest whole numbers? $\ce{\_CH3CH(CH3)CH2CH2CH3 + \_O2 -> \_CO2 + \_H2O}$ A. 20 B. 37 C. 47 D. 53

In a molten carbonate fuel cell the mixture of hydrogen and carbon dioxide from the reaction is fed to the anode, while a mixture of oxygen and carbon dioxide is fed to the cathode. Carbonate ions, $\ce{CO3^2-}$, move through the molten electrolyte from the…

Suggest why a molten carbonate fuel cell running on this gas mixture is considered to have a low environmental impact.

State the equation for the formation of glucose by photosynthesis.

(i) Outline two advantages of using biobutanol rather than petrol (gasoline) as a fuel for vehicles. (ii) Calculate, using the average bond enthalpies in section 12 of the data booklet, the enthalpy change in $\mathrm{kJ\,mol^{-1}}$ for the combustion of…

What is the coefficient of oxygen when the equation for the complete combustion of butan-1-ol is balanced using the smallest whole numbers? The unbalanced equation is $\ce{C4H9OH + O2 -> CO2 + H2O}$. A. 4 B. 6 C. 7 D. 13

When the equation for the complete combustion of 1 mol of pentan-1-ol, $\ce{C5H11OH}$, is balanced, what is the sum of all the coefficients? Unbalanced equation: $\ce{C5H11OH(l) + O2(g) -> CO2(g) + H2O(l)}$ A. 19 B. 19.5 C. 20 D. 39

Which statement describes a disadvantage of using bioethanol rather than petrol (gasoline) as a fuel for cars? A. The carbon dioxide released when bioethanol burns was recently removed from the atmosphere by the crop B. Bioethanol releases less energy per…

Which set of products can be formed by the incomplete combustion of butane, $\ce{C4H10}$? A. $\ce{C}$, $\ce{CO}$ and $\ce{H2O}$ B. $\ce{CO2}$ and $\ce{H2O}$ only C. $\ce{CO}$ and $\ce{H2}$ only D. $\ce{C}$ and $\ce{H2}$ only

Which statement best describes an environmental consequence of using fossil fuels? A. The carbon dioxide released is completely absorbed by the oceans, so its concentration in the atmosphere does not change. B. Coal has a higher hydrogen to carbon ratio than…