Question

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Unit Activity: Kinetic Molecular Theory and Gas Laws

Part A
What is the composition and percentage of the gases in Earth’s atmosphere?

Part B
List in ascending order the different layers of atmosphere, their heights, and main features.

Part C
Why are the gases in the troposphere layer denser than the gases in the other layers? Give reasons for your answer.

Part D
How does the kinetic theory of gases explain the weather changes happening in the troposphere? You can also research on the Internet using keywords such as troposphere, atmospheric layers, and weather changes.

Answer 1

Answer:

part a

Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent

part B

The atmospheric layers are as follows.

Troposphere : The Troposphere is the atmospheric layer closest to the Earth. ...

Stratosphere : The Stratosphere is just above the troposphere, starting at an average altitude of about 7 miles above the sea level. ...

Mesosphere : ...

Thermosphere : ...

Ionosphere : ...

Exosphere :

part c

The troposphere is denser than all its overlying atmospheric layers because a larger atmospheric weight sits on top of the troposphere and causes it to be most severely compressed. ... Nearly all atmospheric water vapor or moisture is found in the troposphere, so it is the layer where most of Earth's weather takes place

part D

It also states that the average kinetic energy of gas molecules is proportional to its temperature. Scientists know that the uneven heating of the Earth is what causes wind and weather in the troposphere

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Answer 2

Answer:

part a

Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent

part B

The atmospheric layers are as follows.

Troposphere : The Troposphere is the atmospheric layer closest to the Earth. ...

Stratosphere : The Stratosphere is just above the troposphere, starting at an average altitude of about 7 miles above the sea level. ...

Mesosphere : ...

Thermosphere : ...

Ionosphere : ...

Exosphere :

part c

The troposphere is denser than all its overlying atmospheric layers because a larger atmospheric weight sits on top of the troposphere and causes it to be most severely compressed. ... Nearly all atmospheric water vapor or moisture is found in the troposphere, so it is the layer where most of Earth's weather takes place

part D

It also states that the average kinetic energy of gas molecules is proportional to its temperature. Scientists know that the uneven heating of the Earth is what causes wind and weather in the troposphere

Explanation:

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