Kinetic theory of gases momentum

In summary, the kinetic theory of gases momentum is a fundamental concept that explains the behavior of gases by considering the motion and collisions of individual molecules. It applies to all types of gases and is directly related to the gas's momentum and pressure. Temperature affects the momentum through its impact on the molecules' kinetic energy. This theory has significant applications in various fields, including engineering, meteorology, and chemistry.
  • #1
lukasz08
10
0
p=momentum=(mass*volume)

delta px = pf - pi
mvf - mvi
mvx - (-mvx) <<<<---- where does this second negative come from ? what am i missing here?
2mvx


in my book it shows that
delta px = - mvx - (mvx) = -2mvx
 
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  • #2
When a particle bounces elastically off a wall, its velocity (and momentum) changes direction. Does that help?
 
  • #3
yes i understand that so the second negative appears after the particle has hit the wall resulting in the 2mvx ?
 
  • #4
ok i got it mvi = -mvf therefore -mvi - mvf = -2mvx
 

FAQ: Kinetic theory of gases momentum

What is the kinetic theory of gases momentum?

The kinetic theory of gases momentum is a fundamental concept in physics that explains the behavior of gases in terms of the motion and collisions of individual molecules. It states that the pressure exerted by a gas is a result of the average momentum of the molecules colliding with the walls of the container.

How is momentum related to the kinetic theory of gases?

Momentum is directly related to the kinetic theory of gases as it is a measure of the motion of the gas molecules. The faster the molecules are moving and the more collisions they make, the higher the momentum and pressure of the gas will be.

Does the kinetic theory of gases apply to all types of gases?

Yes, the kinetic theory of gases is a universal concept that applies to all types of gases, regardless of their chemical composition. This is because all gases are made up of tiny particles that are in constant motion, and the theory explains their behavior based on this motion.

How does temperature affect the kinetic theory of gases momentum?

According to the kinetic theory of gases, temperature is directly proportional to the average kinetic energy of the gas molecules. This means that as the temperature increases, the molecules will have more kinetic energy and will move faster, resulting in a higher momentum and pressure.

What is the significance of the kinetic theory of gases momentum in real-world applications?

The kinetic theory of gases momentum is crucial in understanding and predicting the behavior of gases in various real-world applications. It is used in fields such as engineering, meteorology, and chemistry to study and design gas systems, predict weather patterns, and explain chemical reactions involving gases. Without this theory, our understanding of gas behavior would be limited.

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