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boyakko [2]
3 years ago
12

Sally has touched a hot pan on the stove and burnt her hand. This example shows what type of heat transfer?

Chemistry
1 answer:
Minchanka [31]3 years ago
6 0

Answer:

Transfer of Heat

You might have observed that a frying pan becomes hot when kept on a flame. It is because the heat passes from the flame to the utensil. When the pan is removed from the fire, it slowly cools down. Why does it cool down? The heat is transferred from the pan to the surroundings. So you can understand that in both cases, the heat flows from a hotter object to a colder object. In fact, in all cases heat flows from a hotter object to a colder object.

Explanation:

please make me as brainleist

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15 points
castortr0y [4]

Answer:

The number of proton of magnisium = 12

4 0
2 years ago
A container of gas is heated from 250 k to 303k. What is the new pressure if the initial pressure is 880kpa? (Assume constant vo
Anna [14]
So this is p1 over t1 = p2 over t2. So you do 880/250=x/303 and then cross multiply and divide
8 0
2 years ago
A gas mixture contains 3.0 mol of hydrogen (H2) and 7.3 mol of nitrogen (N2). The total pressure of the mixture is 304 kPa. What
Inga [223]

Answer:

Mole fraction H₂ = 0.29

Partial pressure of H₂ → 88.5 kPa

Explanation:

You need to know this relation to solve this:

Moles of a gas / Total moles = Partial pressure of the gas / Total pressure

Total moles = 3 mol + 7.3 mol → 10.3 moles

Mole fraction H₂ → 3 moles / 10.3 moles = 0.29

Mole fraction = Partial pressure of the gas / Total pressure

0.29 . 304 kPa = Partial pressure of H₂ → 88.5 kPa

5 0
3 years ago
3. Describe the process of heat transfer by conduction. What happens to the molecules that cause the thermal energy to be transf
ivanzaharov [21]
It is transferred by conduction when two objects at two different temps touch each other, and the one with the most heat will transfer its heat to the cooler object until they both have the same temperature..
At the point of touching the fast moving molecules of the warmer object will collide with the slower moving molecules of the cooler object.
7 0
3 years ago
Sarah was walking and picked up a rock that she thought looked interesting. The rock appeared to have layering, and contain frag
vladimir2022 [97]
The answer would be ~sedimentary~

Hope this helps

Have a great day/night
5 0
2 years ago
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