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The specific heat of most liquids compared with that of the same substance as a gas is

  • A.exactly the same
  • B.zero
  • C.higher on a mass basis
  • D.lower on a mass basis

Answer: C

Liquids retain more modes of motion available for storing energy at a given temperature, so their capacity is generally the larger. Water is an extreme case at about twice its own value as steam. Rotational and vibrational modes account for the difference.

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