Question

how we increase the viscosity index of oil​

Answer 1

Answer:

As the temperature increases, these molecules tend to stretch out. As the molecules stretch out, the fluid's internal friction will increase, causing the fluid to flow at a slower rate. Therefore, it will have a higher viscosity.

Answer 2

As the temperature increases, these molecules tend to stretch out. As the molecules stretch out, the fluid's internal friction will increase, causing the fluid to flow at a slower rate. Therefore, it will have a higher viscosity.