Class 7 Exam > Class 7 Questions > With increase in temperature, atmospheric pre...
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With increase in temperature, atmospheric pressure ___________.
- a)increases
- b)decreases
- c)remains constant
- d)can decrease or increase
Correct answer is option 'A'. Can you explain this answer?
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With increase in temperature, atmospheric pressure ___________.a)incre...
Air pressure is influenced by temperature because, as the air is warmed, the molecules start moving around more, so they bump into each other more often and create more pressure. But, air pressure also affects temperature - the more those molecules bump into each other, the more heat they generate.
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With increase in temperature, atmospheric pressure ___________.a)incre...
Impact of Temperature on Atmospheric Pressure
Increasing temperature has a direct impact on atmospheric pressure. Here's how it affects atmospheric pressure:
Expansion of Air Molecules
- As temperature rises, air molecules gain energy and move faster, causing them to spread out and take up more space.
- This expansion of air molecules leads to a decrease in the density of air in a given volume.
Decrease in Atmospheric Pressure
- When air expands due to increased temperature, the same number of air molecules are spread out over a larger area, resulting in a decrease in air pressure.
- This decrease in air pressure is directly related to the increase in temperature.
Relation between Temperature and Pressure
- According to Gay-Lussac's Law, the pressure of a gas is directly proportional to its temperature, assuming the volume and amount of gas remain constant.
- Therefore, as temperature increases, the pressure of the gas also increases.
In conclusion, with an increase in temperature, atmospheric pressure tends to decrease due to the expansion of air molecules and the decrease in air density. This relationship between temperature and pressure is important to understand various weather phenomena and atmospheric conditions.
Increasing temperature has a direct impact on atmospheric pressure. Here's how it affects atmospheric pressure:
Expansion of Air Molecules
- As temperature rises, air molecules gain energy and move faster, causing them to spread out and take up more space.
- This expansion of air molecules leads to a decrease in the density of air in a given volume.
Decrease in Atmospheric Pressure
- When air expands due to increased temperature, the same number of air molecules are spread out over a larger area, resulting in a decrease in air pressure.
- This decrease in air pressure is directly related to the increase in temperature.
Relation between Temperature and Pressure
- According to Gay-Lussac's Law, the pressure of a gas is directly proportional to its temperature, assuming the volume and amount of gas remain constant.
- Therefore, as temperature increases, the pressure of the gas also increases.
In conclusion, with an increase in temperature, atmospheric pressure tends to decrease due to the expansion of air molecules and the decrease in air density. This relationship between temperature and pressure is important to understand various weather phenomena and atmospheric conditions.
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With increase in temperature, atmospheric pressure ___________.a)increasesb)decreasesc)remains constantd)can decrease or increaseCorrect answer is option 'A'. Can you explain this answer?
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