Air pressure at different room temperatures

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SUMMARY

The discussion centers on the relationship between air pressure and room temperature, specifically in the context of a physics practical involving a sealed syringe. According to the ideal gas law (PV=k), as room temperature increases, the air pressure within the syringe also increases due to the direct proportionality between temperature and pressure in a closed system. The gradient of the graph of pressure (P) against the inverse of volume (1/v) reflects this constant (k), which remains unchanged regardless of temperature variations. Therefore, higher room temperatures lead to increased air pressure in the sealed syringe.

PREREQUISITES
  • Understanding of the ideal gas law (PV=k)
  • Basic knowledge of pressure and volume relationships in physics
  • Familiarity with graphing concepts, particularly gradients
  • Concept of temperature's effect on gas behavior
NEXT STEPS
  • Research the ideal gas law and its applications in real-world scenarios
  • Explore the relationship between temperature and pressure in gases using Charles's Law
  • Investigate the effects of varying volume on pressure in closed systems
  • Learn about experimental methods for measuring gas pressure and temperature
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Students studying physics, educators teaching gas laws, and anyone interested in the principles of thermodynamics and gas behavior.

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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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Room temperature is a nice comfortable value for humans. Otherwise, there is nothing special.
 
Apologies, I wanted to ask if air pressure increase or decrease when room temperature increases?
 

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