Question: In which of the following scenarios does viscosity increase?
Options:
Heating a fluid
Cooling a fluid
Adding a solvent
Increasing pressure
Correct Answer: Cooling a fluid
Solution:
Viscosity generally increases when a fluid is cooled.
In which of the following scenarios does viscosity increase?
Practice Questions
Q1
In which of the following scenarios does viscosity increase?
Heating a fluid
Cooling a fluid
Adding a solvent
Increasing pressure
Questions & Step-by-Step Solutions
In which of the following scenarios does viscosity increase?
Step 1: Understand what viscosity means. Viscosity is a measure of how thick or sticky a fluid is.
Step 2: Know that temperature affects viscosity. Generally, when a fluid is cooled, it becomes thicker.
Step 3: Remember that as a fluid cools, its molecules move slower and stick together more, which increases viscosity.
Step 4: Conclude that viscosity increases when a fluid is cooled.
Viscosity – Viscosity is a measure of a fluid's resistance to flow, which can change with temperature and pressure.
Temperature Effect on Viscosity – As temperature decreases, the kinetic energy of the molecules in a fluid decreases, leading to increased intermolecular forces and higher viscosity.
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