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.
![For the equilibrium reaction CO) + H20(6) >CO2G) + H2G), the Keq value at
690°C is 10.0. A mixture of 0.300M of CO, 0.300M of H20,0.500M of CO2
and .500M of H2 is placed in a flask.
a. Show that the reaction is NOT at equilibrium (Trial Keq?)
b. Determine the direction in which the reaction will shift to reach
equilibrium
c. Calculate the equilibrium concentrations of all four species..
Corg)tH20q<>cOzig) + Hz(g
230OM
2000M :
+ Sc
SC
JC
E
Keq=
= IG.O
9)
=(0.300M)(.30OM)
(o.300M)(0.300M)
ミス。チQ<heyる
b) Shft to the left.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8bc0803c-5937-4745-8854-c3bbfad9e507%2Ff51b4a99-163d-4e4e-a373-20bd996de064%2Frjjc1dn_processed.jpeg&w=3840&q=75)
![%3D
%3D
3.16
0.948+
-3人6x
-0.300M
O0448 =
-0.107t
%3D
-4.16
ー4.16
6.300MI)7
3.10-10.500-
5అంప క
0.300+5C
(0.300)(3.16)= Go948+3.1GJC = G0 S00-DC
G948+4.165= 0.500
- 0.948
- G.94 &
4.16 =
-Go448
4.16
4.16
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8bc0803c-5937-4745-8854-c3bbfad9e507%2Ff51b4a99-163d-4e4e-a373-20bd996de064%2F431r0s6_processed.jpeg&w=3840&q=75)
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