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Discussion

Thermochemical storage differs from sensible and latent storage in that the energy is held in

  • A.the pressure of a confined gas
  • B.the chemical bonds of the reactants
  • C.the temperature of a solid medium
  • D.the phase of a fusible material

Answer: B

A reversible reaction is driven one way by heat and runs back when the products are recombined, and the separated products can be kept indefinitely at ambient temperature. That makes it the only medium credible for seasonal storage.

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