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8090 [49]
3 years ago
6

A red-hot piece of iron is set on a metal workbench. A student says that it transfers heat to the bench and the air by conductio

n, and that no other heat transfer takes place. What is wrong with the student's reasoning?
Metal cannot transfer heat by conduction.

The iron convects heat to the workbench.

Conduction does not work between a solid and a gas.

The metal also gives off heat in the form of radiation.
Chemistry
2 answers:
borishaifa [10]3 years ago
8 0

Answer: The metal also gives off heat in the form of radiation.

Explanation:

The heat transfer takes place by three methods:

1. Conduction: This type of heat transfer happens when there is direct contact between the two solid objects.

2. Convection: This type of heat transfer happens when there is a movement of fluid (liquid or gas) in which convection currents are produced due to the movement of hot fluid upwards and cold fluid downwards. This happens as the density of hot fluid decreases and thus it moves upwards.

3. Radiation: This type of heat transfer happens when there is direct transfer of energy through space.

Alecsey [184]3 years ago
5 0
<span>The metal also gives off heat in the form of radiation. 

Just took the test and got it right, using a process of elimination based on what you know helps. Hope this helps!</span>
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