• The thermite reaction is quite a common reaction and is spectacular. Iron (III) o de and metallic aluminum produce iron and aluminum oxide in a few seconds. Find AH for this reaction given the following information. 24+A₁0₁) AH-1670 kJ/mol 2F+O >Fe₂0x1 AH-822kJ/mol
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
![• The thermite reaction is quite a common reaction and is
spectacular. Iron (III) o de and metallic aluminum produce
iron and aluminum oxide in a few seconds. Find AH for this
reaction given the following information.
2A+Al₂O3(2)
AH--1670 kJ/mol
SONBI
2Fc+
→→>Fe₂034)
AH-822kJ/mol
2.The initial rate of the reaction: BrO3(aq) + 5 Br(aq) + 8
H(aq) →3 Br2(1) + H₂O(1)
Has been measured at the reactant concentrations shown
(in mol/L)
Initial rate
Experiment [BrO [Br] [H+]
(mol/(L's))
1
0.10
0.10
0.10
8.0 x 10-4
2
0.20 0.10
0.10
1.6 x 10-³
3
0.10
0.20
0.10
1.6 × 10-3
4
0.10 0.10 0.20
3.2 x 10-3
According to these results, what would be the initial rate (in
mol/(Ls)) if all three concentrations are:
[BrO3 ]-[Br] [H*]=0.20 mol/L?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdaeb9364-7569-4540-a020-839819d95915%2F0128f520-eb64-4723-b1c4-419569e22a38%2F5bh1ojl_processed.jpeg&w=3840&q=75)
Step by step
Solved in 2 steps with 1 images
