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geniusboy [140]
2 years ago
11

A student is standing with their back facing a campfire. The student notices that their back is much warmer than their chest. Th

ey know that thermal energy is being transferred from the fire and that this method of energy transfer can happen even if no air is present.
This method of energy transfer is —



convection

condensation

conduction

radiation
Chemistry
2 answers:
fiasKO [112]2 years ago
8 0
Conduction because it transfers thermal energy
Mandarinka [93]2 years ago
3 0

Answer:Conduction occurs when energy is passed between objects. The transfer of thermal energy is called heat. Particles of matter are in constant motion.

Explanation:

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lys-0071 [83]

Answer: B its most likely

6 0
3 years ago
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A gas has a pressure of 1.34 atm when the temperature is 237K. The gas is then heated until the temperature measures 312K. What
alexandr1967 [171]

The answer for the following question is answered below.

  • <em><u>Therefore the new pressure of the gas is 1.76 atm.</u></em>

Explanation:

Given:

Initial pressure of the gas = 1.34 atm

Initial temperature of the gas = 273 K

final temperature of the gas = 312 K

To solve:

Final temperature of the gas

We know;

From the ideal gas equation

P × V = n × R × T

So;

from the above equation we can say that

    <em>P ∝ T</em>

     \frac{P}{T} = constant  

     \frac{P_{1} }{P_{2} } = \frac{T_{1} }{T_{2} }

Where;

P_{1} = initial pressure of a gas

P_{2} = final pressure of a gas

T_{1} = initial temperature of a gas

T_{2} = final temperature of  a gas

    P_{2} = \frac{1.34*312}{237}

    P_{2}  = 1.76 atm

<em><u>Therefore the new pressure of the gas is 1.76 atm.</u></em>

6 0
3 years ago
1. What causes wind? *
Gelneren [198K]

Answer:

it's the uneven heating of the region's of the troposphere by the sun the sun warms the air at the equator more than the air at the poles. it causes convention currents large scale patterns of winds that move heat and moisture around the globe. as air rises expands and cools water vapor condenses and clouds develop.

Explanation:

I hope this helps :)

3 0
3 years ago
At room temperature, the solubility of which solute in water would be most affected by a change in pressure?
Bad White [126]
<h3><u>Answer;</u></h3>

At room temperature, the solubility of which solute in water would be most affected by a change in pressure?

<h3><u>Explanation;</u></h3>
  • As the pressure on a gas confined above a liquid increases, the solubility of the gas increases in the liquid.
  • Carbon dioxide gas is most soluble in water under conditions of high pressure and low temperature.
  • The solubility of gases decreases with increasing temperature, so the air space inside the cylinder when cold water is used will be less compared to warm water.
4 0
3 years ago
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When you blow dry your hair
mixer [17]
In short a physical change is something that changed the way something looks but doesn't affect the chemical makeup. Drying your hair doesn't change the color of your hair, it just makes it dry so thats a physical change. Rust forming on a knife is a chemical change becaause the water reacts with the chemical makeup of the knife. Hope that helps.
3 0
3 years ago
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