Mechanical Engineering - Heat Transfer, Refrigeration and Air Conditioning - Discussion

Discussion Forum : Heat Transfer, Refrigeration and Air Conditioning - Section 5 (Q.No. 42)
42.
The transfer of heat by molecular collision is smallest in
solids
liquids
gases
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Hari said:   6 years ago
No, a molecular collision in solid hence considers only gases and liquids.

Compared to liquid heat transfer is less in gases through molecular collision.

Hence answer is gases.

Avadhesh kumar said:   8 years ago
Why not the answer SOLID?

Because the heat transfer in solid only lattice vibrations and a free electron.

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