Question

Look at the image of a salad with chicken on a counter top .in which direction is the thermal energy moving?

Answer 1

Answer:

Well,

Explanation:

In this image, the thermal energy could be going both in an upwards and downwards direction. The chicken passes thermal energy to the salad under it. But at the same time, it is releasing smoke upwards, meaning it is also releasing thermal energy upwards.

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Answer 2

We want to see in which direction the thermal energy goes.

We will see that it actually goes in all directions.

So, the general rule for thermal energy transfer depends on the transfer method.

In conduction (when two objects touch directly) the heat moves from the hotter object to the colder object.

Here, we can see that the hot chicken is touching the salad and the dish, which are probably colder than the chicken, thus in this case the thermal energy is moving downwards, towards the salad/dish.

Also, there is air in contact with the chicken, thus there is also some amount of energy that is being conducted from the chicken to the air, so there is also thermal energy going upwards.

Convection can be ignored here, as usually affects liquids/gases.

Radiation is the last heat transfer form. We know that every object with some given temperature, irradiates thermal energy.

This happens in the whole solid angle (this transfers energy in all directions)

So concluding, by conduction the thermal energy goes mainly downwards, to the salad and dish, and also a bit upwards, to the air surrounding the chicken.

And by radiation, a small amount of thermal energy is irradiated in all directions.

If you want to learn more, you can read:

https://brainly.com/question/9052564