Based on your calculations, indicate whether each statement is True (T) or False (F): v1. Each experiment started with a different initial concentration of N2O4. 2. The ratio ([NO2] / [N2O4]) is equal to a constant value. 3. The ratio (2 [NO2] / [N2O4]) is equal to a constant value. 4. The ratio ([NO2]² / [N204]) is equal to a constant value. 5. Each experiment reached a different set of equilibrium concentrations.
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.
10.2
![Dinitrogen tetraoxide is a colorless gas at room temperature. It can dissociate into nitrogen dioxide, which is a reddish brown gas.
N204(g) = 2 NO2(g)
Three experiments were run starting with different initial amounts of N204(g) ([N204]o in the table). The systems were allowed to reach equilibrium and the concentrations for each
gas were measured (in units of moles/Liter).
For each of the boxes below, calculate the ratios indicated by the column heading. This will show the mathematical relationship that exists between the concentrations of NO, and
N204 at equilibrium.
Be sure to round to the correct number of significant figures.
Exp [N204l0 [NO2] [N204] [NO,] / [N204] 2 [NO2] / [N204] [NO2]? / [N,04]
1
3.7
2.92 2.2
2
3.1
2.64
1.8
3
2.4
2.24
1.3
Based on your calculations, indicate whether each statement is True (T) or False (F):
v1. Each experiment started with a different initial concentration of N,O4.
v 2. The ratio ([NO2] / [N204]) is equal to a constant value.
v3. The ratio (2 [NO2] / [N204]) is equal to a constant value.
v4. The ratio ([NO2]? / [N204]) is equal to a constant value.
v 5. Each experiment reached a different set of equilibrium concentrations.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1b8f4204-6fd9-4075-b4ac-a5ec362f3769%2F8ad4388e-73ff-44b0-baa6-67628aeccacb%2Fxpi9kx_processed.png&w=3840&q=75)
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