4 HNO3(aq) + 5 N₂H₂(1) → 7 N₂(g) + 12 H₂O(g) AH = =- 74. Which statement is correct for the reaction above? a. 205.2 kJ are absorbed per mole of H₂O(g) used. ne b. 351.7 kJ are absorbed per mole N₂(g) formed. c. 615.5 kJ are released per mole of HNO3(aq) used. 2462.0 kJ
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.
![A W
Kaisi Teri Khu x | M Inbox - hadia.ali@x
75°F
Partly cloudy
Copy of Thermoc X
W
Copy of Copy of T X N Thermochemistry X
https://docs.google.com/document/d/1pkSGIBAmFvDbKP6jy8kbw6ffVXU-zJk_zOCuzW91NfQ/edit#
W V V D
Q W
W b b
Use the following information to answer the next question.
4 HNO3(aq) + 5 N₂H₂(1) 7 N₂(g) + 12 H₂O(g) ΔΗ : = - 2462.0 kJ
74. Which statement is correct for the reaction above?
a. 205.2 kJ are absorbed per mole of H₂O(g) used.
19
W Chemistry 30 June X
19 W
b. 351.7 kJ are absorbed per mole N₂(g) formed.
C. 615.5 kJ are released per mole of HNO3(aq) used.
d. 492.4 kJ are released per mole of N₂H4(1) formed.
Can you please give a thorough explanation on why c is the answer. Thank you. |
potential energy
Bb
X
W IBD b
b Answered: a. Cal X
A
W
+
ENG
US
用
I
→→
X
⠀
Other favorites
♂
-
P
ha
+
→]]
7:46 PM
2022-09-28](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F66288050-60d7-4c6a-984e-b13ebf97b8a1%2F35ef7c09-9f46-4170-9c21-c61afafbb56a%2F7ee149w_processed.png&w=3840&q=75)
Step by step
Solved in 3 steps with 3 images
