Which of the following solids has a high thermal conductivity? (2019)

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Question: Which of the following solids has a high thermal conductivity? (2019)

Options:

Correct Answer: Metallic solids

Exam Year: 2019

Solution:

Metallic solids have high thermal conductivity due to the presence of free-moving electrons.

Which of the following solids has a high thermal conductivity? (2019)

Which of the following solids has a high thermal conductivity? (2019)

Step 1: Understand what thermal conductivity means. It is the ability of a material to conduct heat.
Step 2: Identify the types of solids. Common types include metallic solids, ionic solids, covalent solids, and molecular solids.
Step 3: Learn about metallic solids. They are made of metal atoms that have free-moving electrons.
Step 4: Recognize that these free-moving electrons allow metallic solids to transfer heat quickly.
Step 5: Compare with other types of solids. Ionic, covalent, and molecular solids do not have free-moving electrons, so they conduct heat poorly.
Step 6: Conclude that metallic solids have high thermal conductivity because of their structure and free electrons.

No concepts available.