The rule of Dulong and Petit states that the molar heat capacities of the metallic elements...

The rule of Dulong and Petit states that the molar heat capacities of the metallic elements are approximately constant. Estimate the value of this constant by calculating the molar heat capacities of the following metals from their specific heats and taking the average.

Metal	Specific heat J g^-1 K^-1	Molar heat capacity J mol^-1 K^-1
zinc	0.388
copper	0.385
zirconium	0.278

Average: _________ J mol^-1 K^-1

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queen_honey_blossom answered 2 years ago

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