The energy change of the potato is 2 kJ.
Energy can trade from one shape to some other. As an example, when you turn on a lightbulb, electrical power adjustments to thermal electricity and light power. An automobile adjustments energy stored in the chemical bonds of gasoline to numerous specific paperwork.
The general electricity trade of the response this is the distinction among the reactant's power and the product's strength. If the reactants have extra energy than the goods, energy has been released. If the reactants have much less strength than the products, strength has been absorbed by way of the debris.
The electricity exchange that happens because the end result of a reaction relies upon on the difference among the power of the reactants and the energy of the products. For reactions like combustion, the gas (as an instance wooden) has strength saved inside the chemical bonds among the atoms that make it up.
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