A series of hypothetical thermochemical reactions with their corresponding enthalpies are given below. As) + X2(9) → AX2(g) A,Qa(9) + 5X2(g) + ½ X2(g) > AH = - 394 KJ/mole > ЗАХ, → 3AX2(9) + 4Q,Xm AH = - 2,222 KJ/mole Q2(9) AH = - 286 KJ/mole (A). Using the thermochemical equations above, the heat for the given overall reaction is Kilojoules per mole. Express answer in the NEAREST WHOLE NUMBER 3A(s) + 4Q2(g) → A;Q8(g) A,Qs(9) (B). If the overall thermochemical reaction given above has an entropy value of -270 Joules/Kelvin, its free energy (AG) at 100 degrees Celsius is_ KiloJoules. Express answer in the NEAREST WHOLE NUMBER (C). If the overall thermochemical reaction given above has an entropy value of -270 Joules/Kelvin, then it will become spontaneous at temperatures above_ Kelvin. Express answer in the NEAREST WHOLE NUMBER
A series of hypothetical thermochemical reactions with their corresponding enthalpies are given below. As) + X2(9) → AX2(g) A,Qa(9) + 5X2(g) + ½ X2(g) > AH = - 394 KJ/mole > ЗАХ, → 3AX2(9) + 4Q,Xm AH = - 2,222 KJ/mole Q2(9) AH = - 286 KJ/mole (A). Using the thermochemical equations above, the heat for the given overall reaction is Kilojoules per mole. Express answer in the NEAREST WHOLE NUMBER 3A(s) + 4Q2(g) → A;Q8(g) A,Qs(9) (B). If the overall thermochemical reaction given above has an entropy value of -270 Joules/Kelvin, its free energy (AG) at 100 degrees Celsius is_ KiloJoules. Express answer in the NEAREST WHOLE NUMBER (C). If the overall thermochemical reaction given above has an entropy value of -270 Joules/Kelvin, then it will become spontaneous at temperatures above_ Kelvin. Express answer in the NEAREST WHOLE NUMBER
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Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.132QP
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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.
Question
Transcribed Image Text:A series of hypothetical thermochemical reactions with their corresponding enthalpies are
given below.
As) + X2(9) → AX2(9)
A;Q8(g) + 5X2(9) → 3AX2(9)
Q2(9)
AH = - 394 KJ/mole
+ 4Q2X) AH = - 2,222 KJ/mole
+ ½ X2lg) → QzX
AH = - 286 KJ/mole
(A). Using the thermochemical equations above, the heat for the given overall reaction is
Kilojoules per mole. Express answer in the NEAREST WHOLE NUMBER
+ 4Q2(9) > A,Q3(9)
3A(s)
(B). If the overall thermochemical reaction given above has an entropy value of -270
Joules/Kelvin, its free energy (AG) at 100 degrees Celsius is
in the NEAREST WHOLE NUMBER
(C). If the overall thermochemical reaction given above has an entropy value of -270
Joules/Kelvin, then it will become spontaneous at temperatures above
KiloJoules. Express answer
Kelvin. Express
answer in the NEAREST WHOLE NUMBER
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