The coinage metals (Group 1B) copper, silver, and gold have specific heats of 0.385, 0.233, and 0.129 J/g-K, respectively. Among this group, the specific heat capacity and the molar heat capacity as the atomic weight increases.

(a) increases, increases.

(b) increases, decreases.

(c) decreases, increases.

(d) decreases, decreases

Question

Chemistry

Ansley Mcbride

8 June, 17:40

The coinage metals (Group 1B) copper, silver, and gold have specific heats of 0.385, 0.233, and 0.129 J/g-K, respectively. Among this group, the specific heat capacity and the molar heat capacity as the atomic weight increases.

(a) increases, increases.

(b) increases, decreases.

(c) decreases, increases.

(d) decreases, decreases

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Answers (1)

Know the Answer?

Avery Pope · Answer 1

D

Explanation:

The specific heat capacity is the heat required to raise the temperature of 1kg of a substance by 1oC. Molar heat capacity of a substance is the heat requiredto raise the temperature of 1mole of a substance by 1oC. Molar heat capacity and specific heat capacity both decreases with increase in atomic weight. Increase in atomic weight also means increase in density of the substance.