The chemical equation that represents the combustion of methane is CH4(9) +20₂(9) - CO₂(g) + 2H₂O(g) An enthalpy diagram that represents the combustion of methane Ep (kJ) Ep (ku) • • • + reactant molecules • The difference between the enthalpy of the products and the enthalpy of the reactants is the "enthalpy change" and is represented by number • 239 154 • 37.0 endothermic -312 A bonds breaking 2648 Using the diagram above, calculate the following values Record your numerical answer; do not include units • separated atoms Energy Pathway Diagram Reaction Coordinate Reaction Coordinate 3450 bonds making exothermic -(~) АН product molecules kJ Activation energy for the forward, catalyzed reaction. KJ Enthalpy of reaction for the reverse catalyzed reaction. KJ Activation energy for the reverse, uncatalyzed reaction. kJ Enthalpy of reaction for the forward, uncatalyzed reaction. kJ Activation energy for the forward, uncatalyzed reaction. kJ Enthalpy of reaction for the reverse uncatalyzed reaction. kJ Activation energy for the reverse, catalyzed reaction. kJ Enthalpy of reaction for the forward, catalyzed reaction.
The chemical equation that represents the combustion of methane is CH4(9) +20₂(9) - CO₂(g) + 2H₂O(g) An enthalpy diagram that represents the combustion of methane Ep (kJ) Ep (ku) • • • + reactant molecules • The difference between the enthalpy of the products and the enthalpy of the reactants is the "enthalpy change" and is represented by number • 239 154 • 37.0 endothermic -312 A bonds breaking 2648 Using the diagram above, calculate the following values Record your numerical answer; do not include units • separated atoms Energy Pathway Diagram Reaction Coordinate Reaction Coordinate 3450 bonds making exothermic -(~) АН product molecules kJ Activation energy for the forward, catalyzed reaction. KJ Enthalpy of reaction for the reverse catalyzed reaction. KJ Activation energy for the reverse, uncatalyzed reaction. kJ Enthalpy of reaction for the forward, uncatalyzed reaction. kJ Activation energy for the forward, uncatalyzed reaction. kJ Enthalpy of reaction for the reverse uncatalyzed reaction. kJ Activation energy for the reverse, catalyzed reaction. kJ Enthalpy of reaction for the forward, catalyzed reaction.
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter15: Energy And Chemical Change
Section: Chapter Questions
Problem 112A: sample of natural gas is analyzed and found to be88.4% methane (CH4) and 11.6% ethane (C2H6) bymass....
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Transcribed Image Text:The chemical equation that represents the combustion of methane is
CH4(9) +20₂(9) - CO₂(g) + 2H₂O(g)
An enthalpy diagram that represents the combustion of methane
Ep
(kJ)
Ep
(ku)
•
•
•
+
reactant
molecules
•
The difference between the enthalpy of the products and the enthalpy of the reactants is the "enthalpy change" and is represented by number
•
239
154
+
37.0
endothermic
-312
A
bonds breaking
2648
Using the diagram above, calculate the following values
Record your numerical answer; do not include units
•
separated
atoms
Energy Pathway Diagram
Reaction Coordinate
Reaction Coordinate
3450
bonds making
exothermic
-(~)
АН
product
molecules
kJ Activation energy for the forward, catalyzed reaction.
KJ Enthalpy of reaction for the reverse catalyzed reaction.
KJ Activation energy for the reverse, uncatalyzed reaction.
kJ Enthalpy of reaction for the forward, uncatalyzed reaction.
kJ Activation energy for the forward, uncatalyzed reaction.
kJ Enthalpy of reaction for the reverse uncatalyzed reaction.
kJ Activation energy for the reverse, catalyzed reaction.
kJ Enthalpy of reaction for the forward, catalyzed reaction.
•
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