c₂h₅oh + 3o₂ → 2co₂ + 3h₂o + 1367 kj\nwhat is the ratio between the energy and oxygen based on the…

c₂h₅oh + 3o₂ → 2co₂ + 3h₂o + 1367 kj\nwhat is the ratio between the energy and oxygen based on the equation?\n\\frac{-? kj}{? mol o₂}\nfill in the green blank.

c₂h₅oh + 3o₂ → 2co₂ + 3h₂o + 1367 kj\nwhat is the ratio between the energy and oxygen based on the equation?\n\\frac{-? kj}{? mol o₂}\nfill in the green blank.

Answer

Explanation:

Step1: Identify the energy and moles of oxygen

From the equation $\mathrm{C}{2}\mathrm{H}{5}\mathrm{OH}+3\mathrm{O}{2}\to2\mathrm{CO}{2}+3\mathrm{H}{2}\mathrm{O} + 1367\ \mathrm{kJ}$, when 3 moles of $\mathrm{O}{2}$ react, 1367 kJ of energy is released.

Step2: Calculate the energy - to - oxygen ratio

We want to find the energy per mole of $\mathrm{O}{2}$. The energy released when 3 moles of $\mathrm{O}{2}$ react is 1367 kJ. So for 1 mole of $\mathrm{O}_{2}$, the energy $E=\frac{1367}{3}\approx455.67$ kJ.

Answer:

455.67