Question

Which one of the following liquid is more viscous: castor oil or coconut oil?

Answer 1

Hint : The molecule which is denser than the other, will automatically be more viscous than the other. The more viscous the compound, the more it has resistance to flow, change its shape or interact with the neighbouring particle.

Complete Step By Step Answer:
So, let’s first understand the viscosity and its properties.
The viscosity of the liquids can be defined as the measure of the resistance to the deformation of the liquid at a given rate.
Or we can say that viscosity is the measure of the resistance of the liquid to flow.
Hence, the more the liquid is viscous, the less its tendency to flow or change its shape.
Viscosity in the terms of physics can also be named as the: internal friction”, as because the fluid having a large viscosity resists its motion because of the development of the large internal friction.
So, now we have understood the term viscosity very well and this will help us in answering:
Thus let’s know the viscosity of coconut oil and castor oil:
So, the viscosity of coconut oil:
Specific gravity at ${16^o}C$ is equal to $0.93$ .
And the viscosity of the castor oil is:
Specific gravity of castor oil is $0.959$ .
So, we can easily see that castor oil has more specific gravity and thus more viscosity.

Note :
Castor oil is the pale yellow liquid. It is a natural viscous, non-drying oil. It is also known to be the non- volatile liquid in nature. Castor oil is obtained from the trees and has a bland taste. The viscosity of the liquids is measured through the instrument viscometer.