Heat released by the reaction, q,an (J) Use the equation qan = -m, alnColn* -10384.843 ATsolr Assume the pecific heat capacity of the reaction solution is the same as that of pure water, 4. 184 Jig- "C. Moles of NaOH (mol) 0.1014 The moiar mass of NaOH is 40.00 g/mol. Enthalpy of Reaction 2 (AH,) in kJ/mol of NaOH
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.
Enthalpy of Reaction 2 (ΔH2) in kJ/mol of NaOH
Be careful! Make sure your energy is in units of kJ, not J.
![4.0574
1. Mass of NlaOH (g)
25.00
Initial temperature
2.
(*C)
37.14
3.
Final temperature ('C)
this is reaction 2
Calculations
12.14
Change in temperature of the reaction
solution, ATin ('C)
Part 3 of 6
Mass of the reaction solution, mln (8)
Add together the masses of the NaOH(s),
water, and HCI(aq). Convert the volumes
of water and HC(aq) to mass using 1.000
g/ml as the density (we are assuming the
HCI solution has the same density as
water, see procedure for volumes used).
204.0574
లో
Part 4 of 6
Heat released by the reaction, a. (J)
-10384.843
Use the equation qxn = -maln*Cpln*
6.
ATaln- Assume the specific heat capacity
of the reaction solution is the same as that
of pure water, 4. 184 J/g. 'C.
Part 5 of 6
Moles of NaOH (mol)
0.1014
The molar mass
NGOH is 40.00 g/mol.
Part 6 af 6
Enthalpy of Reaction 2 (AH,) in kJ/mol of
NaOH](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9c10e4f5-e278-4bd7-8092-f6a430c865ac%2F871e86fa-0c63-4b62-b042-7eeb9c28bd02%2F2vmv5h4_processed.jpeg&w=3840&q=75)
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