Questions
The property of viscosity in gas is due to
detailed solution
Correct option is B
The origin of viscosity of a fluid is the combined effect of inter molecular force of attraction (cohesive force) and transfer of momentum of molecules in a direction normal to the direction of flow due to collision between the molecules. In case of gaseous substance, intermolecular separation is large, so cohesive force is less, so chief reason of viscosity in gassesous substance is collision between the molecules. so option (2) is correct.Talk to our academic expert!
Similar Questions
The coefficient of viscosity of a liquid can be defined from the equation where F is the tangential force between two liquid layers of area A. The layers are at a distance dy apart and du is the difference in their velocities.
Suitable unit for dv/dx is:
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