With increase in the temperature, viscosity of a liquid____________________?
Correct answer: B. Decreases
- A. Increases
- B. Decreases
- C. Remain constant
- D. May increase or decrease; depends on the liquid
Explanation
Heating a liquid generally weakens the cohesive forces between its molecules, so its resistance to flow decreases. Thus, liquid viscosity decreases as temperature rises, unlike the usual behaviour of gases.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Fluid Flow Operations
909 free Fluid Flow Operations MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Fluid Flow Operations questions
The velocity distribution in direction normal to the direction of flow in plane Poiseuille flow is_______________________?
Surge tanks are provided in high pressure water pipelines to___________________?
Mercury is an ideal barometric fluid mainly due to its __________________?
The continuity equation in ideal fluid flow states that__________________?
Capacity of a hydraulic accumulator is defined in terms of maximum_____________________?
Nature of fluid flow during the opening of a valve in a pipeline is_________________?