CH-1231
Exothermic and endothermic reactions
Chemistry · Secondary 4 · Medium · Exothermic and endothermic reactions
A student compares the energy released by burning 1 g of two fuels.
Fuel A: energy change of combustion = kJ g
Fuel B: energy change of combustion = kJ g
Which statement about the energy released is correct?
Fuel A: energy change of combustion = kJ g
Fuel B: energy change of combustion = kJ g
Which statement about the energy released is correct?
- 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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