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5 September, 03:40

What do R and P most likely represent?

A.) R represents chemical energy, P represents thermal energy

B.) R represents thermal energy, P represents chemical energy

C.) R represents potential energy, K represents electrical energy

D.) R represents electrical energy, K represents potential energy

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  1. 5 September, 03:57
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    Answer is: A.) R represents chemical energy, P represents thermal energy.

    A natural gas stove transforms R energy into P energy.

    For example methane is natural gas.

    Balanced chemical reaction of methane combustion:

    CH₄ (g) + 2O₂ (g) → CO₂ (g) + 2H₂O (g) ΔH = - 802.3 kJ.

    This is exothermic reaction, energy is released in form of heat.

    The law of conservation of energy states that the total energy of an isolated system remains constant; energy can neither be created nor destroyed; it can only be transformed or transferred from one form to another.
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