Ethanol, , is mixed with gasoline and sold as gasohol. Use the following to calculate the grams of ethanol needed to provide 799 kJ of heat.
Added by Lauren N.
Step 1
The heat of combustion of ethanol (C2H5OH) is approximately -1367 kJ/mol. Now, let's proceed with the calculations step by step. ** Show more…
Show all steps
Your feedback will help us improve your experience
Nicole Smina and 68 other Chemistry 101 educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Ethanol, $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH},$ is mixed with gasoline and sold as gasohol. Use the following to calculate the grams of ethanol needed to provide $429 \mathrm{~kJ}$ of heat. $$ \begin{array}{c} \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}(l)+3 \mathrm{O}_{2}(g) \longrightarrow 2 \mathrm{CO}_{2}(g)+3 \mathrm{H}_{2} \mathrm{O}(g) ; \\ \Delta H=-1235 \mathrm{~kJ} \end{array} $$
Ethanol, $\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}$, is mixed with gasoline and sold as gasohol. Use the following to calculate the grams of ethanol needed to provide $358 \mathrm{~kJ}$ of heat. $$ \begin{gathered} \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}(l)+3 \mathrm{O}_{2}(g) \longrightarrow 2 \mathrm{CO}_{2}(g)+3 \mathrm{H}_{2} \mathrm{O}(g) ; \\ \Delta H=-1235 \mathrm{~kJ} \end{gathered} $$
Ethanol, C2H5OH, is mixed with gasoline and sold as gasohol. Use the following to calculate the grams of ethanol needed to provide 353 kJ of heat. C2H5OH(l) + 3 O2(g) → 2 CO2(g) + 3 H2O(g) ΔH = -1235 kJ
Susan H.
Recommended Textbooks
Chemistry: Structure and Properties
Chemistry The Central Science
Chemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD