Given the following information: N, bond energy = 941 kJ/mol , F, bond energy = 154 kJ/mol NF. ΔΗ = -103 kJ/mol /2 N2(9) + 3/2 F2(9) 3(g) Calculate the N-F bond energy (kJ/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.
![Given the following information:
N, bond energy = 941 kJ/mol , F, bond energy = 154 kJ/mol
NF 3(9)
AH = -103 kJ/mol
2 N2(a) + 3/2 F2(g)
Calculate the N-F bond energy (kJ/mol)
A balloon of helium gas lost 36.4 kJ of heat while it was raising up,
simultaneously, the helium gas expanded from 64.0 L to 80.0 L against 563
mmHg pressure. Calculate the change in the internal energy (AU) of helium gas (
in kJ) . Given that ( atm.L = 101.3 J)
A ballon originally had a volume of 8.68 L at 258 K and a pressure of 575 mmHg.
To what temperature ( in K) must the balloon be cooled to reduce its volume to
5.00 L at a pressure of 730 mmHg?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2911dbfb-3aed-4e57-b108-952afeae9524%2F87e3126c-cbfe-44b7-b994-649e9a70ec04%2F2trflgcd_processed.png&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781259911156/9781259911156_smallCoverImage.gif)
![Principles of Instrumental Analysis](https://www.bartleby.com/isbn_cover_images/9781305577213/9781305577213_smallCoverImage.gif)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781259911156/9781259911156_smallCoverImage.gif)
![Principles of Instrumental Analysis](https://www.bartleby.com/isbn_cover_images/9781305577213/9781305577213_smallCoverImage.gif)
![Organic Chemistry](https://www.bartleby.com/isbn_cover_images/9780078021558/9780078021558_smallCoverImage.gif)
![Chemistry: Principles and Reactions](https://www.bartleby.com/isbn_cover_images/9781305079373/9781305079373_smallCoverImage.gif)
![Elementary Principles of Chemical Processes, Bind…](https://www.bartleby.com/isbn_cover_images/9781118431221/9781118431221_smallCoverImage.gif)