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Why does the viscosity of gases increase wih temperature?

Why does the viscosity of gases increase wih temperature?

Grade:11

1 Answers

G Narayana Raju
51 Points
9 years ago

The viscosity of gases increases as temperature increases and is approximately proportional to the square root of temperature. This is due to the increase in the frequency of intermolecular collisions at higher temperatures. Since most of the time the molecules in a gas are flying freely through the void, anything that increases the number of times one molecule is in contact with another will decrease the ability of the molecules as a whole to engage in the coordinated movement. The more these molecules collide with one another, the more disorganized their motion becomes.

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