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Problem 5.54 A 100.0-g bar of gold is heated from 25 ∘C to 50 ∘C during...

Problem 5.54

A 100.0-g bar of gold is heated from 25 ∘C to 50 ∘C during which it absorbs 322 J of heat. Assume the volume of the gold bar remains constant.

Part A

Based on the data, calculate the specific heat of Au(s).

Express your answer to two significant figures and include the appropriate units.

Cs =

0.13 J⋅(g⋅∘C)−1

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Part B

Suppose that the same amount of heat is added to two 10.0-g blocks of metal, both initially at the same temperature. One block is gold metal, and one is iron metal. Which block will have the greater rise in temperature after the addition of the heat?

The gold block have the higher final temperature.
Two blocks have the same final temperature.
The iron block have the higher final temperature.

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Correct

Part C

What is the molar heat capacity of Au(s) ?

Express your answer to two significant figures and include the appropriate units.

25.37J•g•°C−1

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