CH-1230
Exothermic and endothermic reactions
Chemistry · Secondary 4 · Hard · Exothermic and endothermic reactions
A student compares two fuels for use in a fuel cell.
Fuel A: energy change of combustion = kJ g
Fuel B: energy change of combustion = kJ g
Which statement correctly compares the energy released by these fuels per gram?
Fuel A: energy change of combustion = kJ g
Fuel B: energy change of combustion = kJ g
Which statement correctly compares the energy released by these fuels per gram?
- Fuel A releases more energy per gram than Fuel B.
- Fuel B releases more energy per gram than Fuel A.
- Both fuels release the same amount of energy per gram.
- Neither fuel releases energy because the values are negative.
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