Question

Which of the following gives the equation that relates the rate of consumption of Al to...

Which of the following gives the equation that relates the rate of consumption of Al to the rate of formation of Al2O3 for the reaction below?

8Al+3Fe3O4→4Al2O3+9Fe

Select the correct answer below:

1/8Δ[Al]Δt=14Δ[Al2O3]Δt

−1/8Δ[Al]Δt=14Δ[Al2O3]Δt

−8Δ[Al]Δt=4Δ[Al2O3]Δt

8Δ[Al]Δt=4Δ[Al2O3]Δt

0 0
Add a comment Improve this question Transcribed image text
Answer #1

rate of reaction is given as:

rate = sign * (1/x) * d[concentration]/dt

sign is negative for reactant and positive for product

x is stoichiometric coefficient in chemical equation

Rate in terms of Al is:

Rate = (-1/8)Δ[Al]/Δt

Rate in terms of Al2O3 is:

Rate = (1/4)Δ[Al2O3]/Δt

Equate both:

(-1/8)Δ[Al]/Δt = (1/4)Δ[Al2O3]/Δt

Answer: option 2

Add a comment
Know the answer?
Add Answer to:
Which of the following gives the equation that relates the rate of consumption of Al to...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT