AH* = -827.5 kJ ΔΗ" = -296.9 kJ Use the following reaction information to solve the questions below ΔΗ" = -276,6 kJ 1. OF, (8) + H₂O (1)--> O₂(g) + 2HF (8) 2. SF (8) + 2H₂0 (1)--> 4HF (8) + SO₂ (8) 3. S(s) + 0₂ (8)-> SO₂ (8) Q1. Determine AH (in kJ) at 298 K for the following reaction: 20F, (8)+2S (s)--> SO₂ (g) + SF, (B) ΔΗ" = ??? Q2. From reaction 1, if the reactants react completely, and the total pressure after the reaction completes is 0.99 atm, what is the partial pressure of O₂, in atm? Q3. From reaction 2, at 25 °C, what is the change in internal energy for the reaction, in kJ? Q4. If 42.0 g of sulfur, S, is dropped into 42.0 g of water, where the sulfur started at 68.0 C and the water started at 15.0 °C, what is the final temperature of the water, in °C? Melting point of sulfur is 112.8 °C, for water: C,H20) = 4.184 J/g °C), for S: Ces(s) = 22.75 1/(mol "C) Ronus. From reaction 3, if the reactants reacts completely in an 85.0 L container and of energy at 298 K, what is the total pressure of SO₂(g) (in atm) after
AH* = -827.5 kJ ΔΗ" = -296.9 kJ Use the following reaction information to solve the questions below ΔΗ" = -276,6 kJ 1. OF, (8) + H₂O (1)--> O₂(g) + 2HF (8) 2. SF (8) + 2H₂0 (1)--> 4HF (8) + SO₂ (8) 3. S(s) + 0₂ (8)-> SO₂ (8) Q1. Determine AH (in kJ) at 298 K for the following reaction: 20F, (8)+2S (s)--> SO₂ (g) + SF, (B) ΔΗ" = ??? Q2. From reaction 1, if the reactants react completely, and the total pressure after the reaction completes is 0.99 atm, what is the partial pressure of O₂, in atm? Q3. From reaction 2, at 25 °C, what is the change in internal energy for the reaction, in kJ? Q4. If 42.0 g of sulfur, S, is dropped into 42.0 g of water, where the sulfur started at 68.0 C and the water started at 15.0 °C, what is the final temperature of the water, in °C? Melting point of sulfur is 112.8 °C, for water: C,H20) = 4.184 J/g °C), for S: Ces(s) = 22.75 1/(mol "C) Ronus. From reaction 3, if the reactants reacts completely in an 85.0 L container and of energy at 298 K, what is the total pressure of SO₂(g) (in atm) after
Chemistry
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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.
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O
the questions below
05.50 147-
AH"=-276.6 kJ
AH = -827.5 kJ
AH* = -296.9 kJ
te in internal energy for the reaction, in
0
AH = -276.6 kJ
ΔΗ° = -827.5 kJ
AH = -296.9 kJ
Use the following reaction information to solve the questions below
1. OF, (g) + H₂O (1)--> O₂(g) + 2HF (g)
2. SF, (8) + 2H₂O (1)--> 4HF (8) + SO₂ (g)
3. S(s) + O₂ (B)--> SO₂ (g)
Q1. Determine AH (in kJ) at 298 K for the following reaction:
20F₂ (g)+2S (s)--> SO₂(g) + SF₂ (g)
ΔΗ° = ???
Q2. From reaction 1, if the reactants react completely, and the total pressure after the
reaction completes is 0.99 atm, what is the partial pressure of O₂, in atm?
Q3. From reaction 2, at 25 °C, what is the change in internal energy for the reaction, in kJ?
Q4. If 42.0 g of sulfur, S, is dropped into 42.0 g of water, where the sulfur started at 68.0
"C and the water started at 15.0 °C, what is the final temperature of the water, in °C?
Melting point of sulfur is 112.8 °C, for water: CH20) = 4.184 J/g °C), for S: Cps(s) = 22.75
J/mol °C)
Bonus. From reaction 3, if the reactants reacts completely in an 85.0 L container and
releases 4203 kJ of energy at 298 K, what is the total pressure of SO₂(g) (in atm) after
reaction?
Ev
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