Question

Which of the following statements regarding a liquid is/are not correct?

• A. The SI unit of viscosity is pascal-second.
• B. 1 Pa-s $=$ 10 poise.
• C. The viscosity of a liquid decreases with increase in temperature
• D. The viscosity of a liquid increases with increase in temperature

Answer 1

The correct option is D The viscosity of a liquid increases with increase in temperature

The viscosity of liquid decreases with increase in temperature. As with increase in temperature, the liquid molecules move apart due to which less adhesion force is created. So, viscosity decreases.