How Do Interparticle Interactions Affect Buoyant Force in Gases?

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Leticia
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This is for an article I'm writing with other members of my lab. There's a section on the equivalence principle applied to a balloon attached to an accelerated reference frame. I'd like to talk about any possible differences in buoyant behavior for different gas models (ideal, van der Waals, Dieterici, etc), but can't find anything on the influence of interparticle forces and overall buoyant force. Anyone knows any articles about it? Do they exert influence in this scenario?

Here's an article explaining the problem I'm studying:
 

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FAQ: How Do Interparticle Interactions Affect Buoyant Force in Gases?

How do interparticle interactions influence the buoyant force in gases?

Interparticle interactions can influence the density and pressure of a gas, which in turn affects the buoyant force. Attractive forces between particles can lead to a slight increase in density, thereby altering the buoyant force experienced by an object in the gas. Conversely, repulsive interactions can decrease the density, affecting the buoyant force differently.

Can Van der Waals forces affect the buoyant force in gases?

Yes, Van der Waals forces, which include both attractive and repulsive interactions between gas molecules, can impact the buoyant force. These forces can modify the effective volume and pressure of the gas, leading to changes in the buoyant force acting on objects immersed in the gas.

How does temperature impact interparticle interactions and buoyant force in gases?

Temperature changes can affect the kinetic energy of gas molecules, which in turn influences interparticle interactions. Higher temperatures generally increase the kinetic energy, reducing the relative impact of attractive forces and potentially decreasing the gas density. This can result in a lower buoyant force. Conversely, lower temperatures can enhance attractive interactions, increasing the gas density and the buoyant force.

Are interparticle interactions significant in ideal gases when considering buoyant force?

In the ideal gas model, interparticle interactions are assumed to be negligible. Therefore, for ideal gases, buoyant force calculations do not take these interactions into account. However, real gases exhibit non-ideal behavior where interparticle interactions can become significant, especially at high pressures and low temperatures.

How do interparticle interactions in gases compare to those in liquids in terms of buoyant force?

Interparticle interactions in gases are generally weaker than those in liquids due to the greater distances between gas molecules. In liquids, strong cohesive forces significantly impact density and buoyant force. In gases, while interparticle interactions do affect buoyant force, the effect is usually less pronounced compared to liquids, except under conditions of high pressure or low temperature where gas behavior deviates from ideality.

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