The change in energy Δ E is to be calculated from bond energy values for the given reactions. Concept introduction: The bond energy is the energy required to break apart a compound. Energy change of a reaction is defined as the sum of change in internal energy and the product of absolute temperature and entropy of system. To determine: The value of energy change Δ E for the reaction H 2 + Cl 2 → 2 HCl .
The change in energy Δ E is to be calculated from bond energy values for the given reactions. Concept introduction: The bond energy is the energy required to break apart a compound. Energy change of a reaction is defined as the sum of change in internal energy and the product of absolute temperature and entropy of system. To determine: The value of energy change Δ E for the reaction H 2 + Cl 2 → 2 HCl .
Solution Summary: The author explains that the change in energy Delta E is to be calculated from bond energy values for the given reactions.
Interpretation: The change in energy ΔE is to be calculated from bond energy values for the given reactions.
Concept introduction: The bond energy is the energy required to break apart a compound.
Energy change of a reaction is defined as the sum of change in internal energy and the product of absolute temperature and entropy of system.
To determine: The value of energy change ΔE for the reaction H2+Cl2→2HCl.
(b)
Interpretation Introduction
Interpretation: The change in energy ΔE is to be calculated from bond energy values Interpretation: The change in energy ΔE is to be calculated from bond energy values for the given reactions.
Concept introduction: The bond energy is the energy required to break apart a compound.
Energy change of a reaction is defined as the sum of change in internal energy and the product of absolute temperature and entropy of system.
To determine: The value of energy change ΔE for the reaction N≡N+3H2→2NH3.
b. Please complete the zig-zag conformation of the compound
(3R,4S)-3,4-dichloro-2,5-dimethylhexane by writing the respective atoms in the boxes.
4
c. Serricornin, the female-produced sex pheromone of the cigarette beetle, has the following structure.
OH
What is the maximum number of possible stereoisomers?
Is this structure a meso compound?
d. Please consider the natural product alkaloids shown below.
Are these two structures enantiomers, diastereomers or conformers?
H
HO
H
H
HN
HO
HN
R
R
с
R=H
cinchonidine
R=ET
cinchonine
H
Nail polish remover containing acetone was spilled in a room 5.23 m × 3.28 m × 2.76 m.
Measurements indicated that 2,250 mg of acetone evaporated. Calculate the acetone concentration in micrograms per cubic meter.
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Calorimetry Concept, Examples and Thermochemistry | How to Pass Chemistry; Author: Melissa Maribel;https://www.youtube.com/watch?v=nSh29lUGj00;License: Standard YouTube License, CC-BY