Sign up for our free STEM online summer camps starting June 1st!View Summer Courses

Problem 116

One of the most bizarre reactions in chemistry is…

11:33

Need more help? Fill out this quick form to get professional live tutoring.

Get live tutoring
Problem 115

The thermite reaction,
$$
\mathrm{Fe}_{2} \mathrm{O}_{3}+\mathrm{Al} \rightarrow \mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{Fe}
$$
produces so much heat that the Fe product melts. This reaction is used industrially to weld metal parts under water, where a torch cannot be employed. It is also a favorite chemical demonstration in the lecture hall (on a small scale).
(a) Balance the chemical equation for the thermite reaction, and include the proper states of matter.
(b) Calculate how many grams of aluminum are needed to completely react with 500.0 g of $\mathrm{Fe}_{2} \mathrm{O}_{3}$ in this reaction.
(c) This reaction produces 852 kJ of heat per mole of $\mathrm{Fe}_{2} \mathrm{O}_{3}$ reacted. How many grams of $\mathrm{Fe}_{2} \mathrm{O}_{3}$ are needed to produce $1.00 \times 10^{4} \mathrm{kJ}$ of heat?
(d) If you performed the reverse reaction aluminum-oxide plus iron makes iron oxide plus aluminum-would that reaction have heat as a reactant or a product?

Answer
Check back soon!

Topics


Discussion

You must be signed in to discuss.

Video Transcript

No transcript available

Recommended Questions

You're viewing a similar answer. To request the exact answer, fill out the form below:

Our educator team will work on creating an answer for you in the next 6 hours.