Chemical Engineering - Heat Transfer - Discussion

Discussion Forum : Heat Transfer - Section 1 (Q.No. 2)
2.
Heat waves
can not pass through vacuum.
travel in straight line.
can be reflected by a mirror.
both (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
24 comments Page 2 of 3.

Himanshu said:   8 years ago
Heat travels through vacuum by radiation and its reflection from mirror is also explained by its wave nature (radiation-mode on heat conduction).

Prakash said:   8 years ago
If heat wave doesn't travel through vacuum then how would heat transfer take place like in vacuum evaporator and other vaccum based equipments?

Lord said:   7 years ago
I think lens term is the best use instead of a mirror.

Ray is reflected by lenses that mean heat energy changes the direction.

Rajkumar said:   6 years ago
Yes Vivek glass is bad conductor of heat hence it is used as insulation for hot tempered pipelines in industries.

Vishnu said:   7 years ago
I think reflection occurs because mirror is solid so, emissive power value we get something which is radiation.

Nikunj kumar said:   9 years ago
Dear friends heat wave can travel in a vacuum. If not then how the Vacuum oven exist?

Prathap said:   1 decade ago
How heat waves reflected by the mirror. Heat can pass through vacuum ex: vacuum oven.

Harsh Thekdi said:   6 years ago
The heat reflectors exist but they are not mirrors per sec.
(1)

Navneet said:   1 decade ago
Can not reflect by mirror thats wave not light.

Shaheer Hassan said:   1 decade ago
Can anyone give me a scientific reason behind?


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