Does air behave like an ideal gas

AI Thread Summary
Air can be approximated as an ideal gas under normal conditions, such as room temperature and standard pressure. The behavior of air is influenced by its molecular composition, which aligns closely with the characteristics of an ideal gas. While the ideal gas law simplifies many calculations, it is important to recognize that real gases, including air, may deviate from ideal behavior under extreme conditions. Understanding the concept of an ideal gas is essential for applying this approximation effectively. Overall, air behaves similarly to an ideal gas in most everyday scenarios.
TyErd
Messages
297
Reaction score
0

Homework Statement


Simple question, does air behave like an ideal gas. I have researched online and flipped through 3 textbooks but cannot find a simple explanation.

Homework Equations


none

The Attempt at a Solution


The closest answer i came up with is air is made up of molecules that behave similar to an ideal gas. I think the problem is I am not exactly sure what an ideal gas is. There's a lot of explanations with regards to chemical structure and what not but I am an engineering student.
 
Physics news on Phys.org
I think you can get away with assuming air is an ideal gas most of the time, as long as temperatures, pressures, and volumes are normal (like room temperature, etc.), but my answer might be kind of vague.
 
Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
Back
Top