Air pressure at different room temperatures

In summary, the conversation discusses a physics practical involving a sealed syringe, compressed air, and the relationship between pressure and volume (P=k/v). The question is how the value of k would change if the experiment is conducted at a higher room temperature. The participants also briefly discuss the behavior of air pressure and density at different temperatures.
  • #1
awesomeness
3
0

Homework Statement


We did a physics practical in which a sealed syringe is compressed and pressure and volume of air inside is recorded. Given P=k/v, the gradient of the graph of P against 1/v is the constant,k. How would the value of k change if the same experiment is conducted at a higher room temperature?

Homework Statement


PV=k

The Attempt at a Solution


I know that in an enclosed space, air pressure increases as temperature increases. But does this also apply when talking about room temperature? Due to the expansion of the air, the density decreases right? So does room temperature increase or decrease? Any help is much appreciated.
 
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  • #2
Room temperature is a nice comfortable value for humans. Otherwise, there is nothing special.
 
  • #3
Apologies, I wanted to ask if air pressure increase or decrease when room temperature increases?
 

Related to Air pressure at different room temperatures

1. What is air pressure?

Air pressure is the force exerted by the weight of air molecules in the Earth's atmosphere. It is measured in units of pressure, such as pounds per square inch (psi) or pascals (Pa).

2. How does temperature affect air pressure?

As temperature increases, air molecules gain energy and move faster, causing them to collide more frequently and with greater force. This increase in molecular collisions results in higher air pressure. Conversely, as temperature decreases, air molecules slow down and collide less frequently, leading to lower air pressure.

3. What is the relationship between air pressure and room temperature?

The relationship between air pressure and room temperature is directly proportional. This means that as room temperature increases, air pressure also increases, and vice versa.

4. How is air pressure measured at different room temperatures?

Air pressure can be measured using a barometer, which detects the weight of the air above it. The most commonly used unit for measuring air pressure is the bar, with one bar being equal to 100,000 pascals. Other units, such as millibars and inches of mercury, are also commonly used.

5. Can air pressure at different room temperatures affect the weather?

Yes, air pressure plays a critical role in weather patterns. Changes in air pressure can indicate the movement of high or low pressure systems, which can lead to changes in temperature, precipitation, and wind patterns. High pressure systems typically bring clear, dry weather, while low pressure systems are associated with cloudy, wet conditions.

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