Question

Viscosity of a gas

• A. Increases with increase in temperature
• B. Decreases with increase in temperature
• C. Is independent of temperature
• D. Is independent of pressure for velocity pressure intensities

Answer 1

Answer:

A. Increases with increase in temperature

Viscosity of a gas increases with an increase in temperature due to an increase in randomness and collision of gas molecules. This is because the transfer of momentum between stationary and moving molecules causes gas viscosity.