CH-1246
Energy profile diagrams
Chemistry · Secondary 4 · Hard · Energy profile diagrams
The combustion of hydrogen is represented by:
.
The activation energy for this reaction is 180 kJ/mol and the enthalpy change, , is −240 kJ/mol.
What is the energy difference between the reactants and the peak of the energy profile diagram for the reverse reaction (decomposition of water)?
.
The activation energy for this reaction is 180 kJ/mol and the enthalpy change, , is −240 kJ/mol.
What is the energy difference between the reactants and the peak of the energy profile diagram for the reverse reaction (decomposition of water)?
- 60 kJ/mol
- 180 kJ/mol
- 240 kJ/mol
- 420 kJ/mol
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