This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: How much energy (kJ) is released if 10.0g of Al(s) is reacted with excess Fe2O3(s) in the thermite ... (Read 12 times)

allihubbard

  • Full Member
  • ***
  • Posts: 169
on: Nov 5, 2023

Question 1

For the reaction 3Fe(s) + C(s) Fe3C(s), ΔH° = 21 kJ/mol and ΔS° = 20.4 J/mol·K at 25°C.  Estimate the minimum temperature above which the formation of cementite (Fe3C) is favored.
◦ 1.0°C
◦ 970°C
◦ 700°C
◦ 1000°C
◦ 760°C

Question 2

How much energy (kJ) is released if 10.0g of Al(s) is reacted with excess Fe2O3(s) in the thermite reaction:  2Al(s) + Fe2O3(s) → Al2O3(s) + 2Fe(l)  ΔH° = - 822.8 kJ/mol
◦ 8,230 kJ
◦ 823 kJ
◦ 305 kJ
◦ 152 kJ
◦ 4,110 kJ
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by allihubbard on Nov 5, 2023

fowlerhop@rocketmail.com

  • Full Member
  • ***
  • Posts: 139
Reply #1 on: Nov 5, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 55% of students answer this correctly


allihubbard

  • Member
  • Posts: 169
Reply 2 on: Nov 5, 2023
Thanks for the timely response, appreciate it

momolu

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Energy cycle of the biosphere Energy cycle of the biosphere
Organisms can be classified according to their source of energy Organisms can be classified according to their source of energy
Energy Production Energy Production
Twelve primary energy channels and the Conception and Governing Vessels of Traditional Chinese ... Twelve primary energy channels and the Conception and Governing Vessels of Traditional Chinese ...
Solar energy heats the atmosphere, creates seasons, and causes air to circulate Solar energy heats the atmosphere, creates seasons, and causes air to circulate
A baseball (1 kg) has an energy of 100 joules. If its uncertainty in position is 1 m, what is ... A baseball (1 kg) has an energy of 100 joules. If its uncertainty in position is 1 m, what is ...
Video: Glucagon (glycogenolysis and gluconeogenesis)

For a complete list of videos, visit our video library