ThermochemistryHard

Question

Two bars of different metals are heated to 60ºC and then immersed in identical insulated containers each containing 200 g of water at 20oC. Will the metal with higher or lower atomic mass cause a greater temperature rise in water?

Options

A.Lower atomic mass
B.Higher atomic mass
C.Same for both
D.Cannot be predicted

Solution

Dulong and petit’s law: Atomic mass × Specific heat ≅ 6.4 for greater temperature rise, heat lost should be high.

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