AH Changes sign when a process is reversed Click on the button within the activity and analyze the relationship between the two reactions that are displayed. The reaction that was on the screen when you started and its derivative demonstrate that the reaction enthalpy, AH, changes sign when a process is reversed. Consider the reaction B(s) + O₂(g)→B₂O3(s), AH = − 1270kJ What will AH be for the reaction if it is reversed?

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Chapter1: Chemical Foundations
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AH Changes sign when a
Click on the process is reversed
button within the activity and analyze the
relationship between the two reactions that are displayed. The reaction that was on the
screen when you started and its derivative demonstrate that the reaction enthalpy, AH,
changes sign when a process is reversed.
Consider the reaction
B(s) + O₂(g) →B₂O3(s), AH = -1270kJ
What will AH be for the reaction if it is reversed?
Express your answer with appropriate units.
View Available Hint(s)
HÅ
Value
Units
?
Transcribed Image Text:AH Changes sign when a Click on the process is reversed button within the activity and analyze the relationship between the two reactions that are displayed. The reaction that was on the screen when you started and its derivative demonstrate that the reaction enthalpy, AH, changes sign when a process is reversed. Consider the reaction B(s) + O₂(g) →B₂O3(s), AH = -1270kJ What will AH be for the reaction if it is reversed? Express your answer with appropriate units. View Available Hint(s) HÅ Value Units ?
g)
(
Hess's Law of Constant
Heat Summation.
Click on the
shown to calculate the reaction enthalpy, AH, for the following reaction:
CH4 (g) +202 (g)→CO₂ (g) + 2H₂O(1) Use the series of reactions that follow:
1. C(s) +2H₂(g) →CH₁ (g), AH = -74.8 kJ.
2. C(s) + O₂(g) →CO₂ (g), AH = -393.5 kJ.
3. 2H2(g) + O2(g)→2H₂O(g), AH = -484.0 kJ.
4. H₂O(1)→H₂O(g), AH = 44.0 kJ.
Express your answer with appropriate units.
► View Available Hint(s)
μA
Value
Submit
button within the activity and use the example
Units
?
Transcribed Image Text:g) ( Hess's Law of Constant Heat Summation. Click on the shown to calculate the reaction enthalpy, AH, for the following reaction: CH4 (g) +202 (g)→CO₂ (g) + 2H₂O(1) Use the series of reactions that follow: 1. C(s) +2H₂(g) →CH₁ (g), AH = -74.8 kJ. 2. C(s) + O₂(g) →CO₂ (g), AH = -393.5 kJ. 3. 2H2(g) + O2(g)→2H₂O(g), AH = -484.0 kJ. 4. H₂O(1)→H₂O(g), AH = 44.0 kJ. Express your answer with appropriate units. ► View Available Hint(s) μA Value Submit button within the activity and use the example Units ?
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