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oil is most viscous at the lowest temperature, because as the temperature gets higher, the viscosity gets lower and such the flow rate decreases as well.
e.g- 19 degrees, 22 degrees, and 31 degrees C.
the most viscous is- 19 degrees C.
the least viscous is- 31 degrees C.
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoIf you don't know one way or the other, that would be the way to bet.
However, it's possible to make motor oils of a blend of substances such that they don't substantially change viscosity as a function of temperature (over some specified range), and it's probably possible to make ones which are more viscous when hot.
Oil is most viscous at lower temperatures. As the temperature decreases, the viscosity of the oil increases, making it thicker and more resistant to flow.
Wiki User
∙ 9y agoViscosity is a measurement to the oils resistance to flow. Therefore the temperature at which oil will still flow but has the greatest resistance is just above freezing temperature.
Wiki User
∙ 15y agoi un no
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What the most viscous liquid?
The most viscous liquid is thought to be pitch, a derivative of tar. It is so viscous that it flows at an extremely slow rate, appearing solid at room temperature.
What is more viscous kerosene or heavy fuel oil?
Heavy fuel oil is typically more viscous than kerosene. Heavy fuel oil is thicker and more dense, making it harder to flow compared to kerosene.
Is phosphate the same as oil?
No, phosphate is a mineral compound containing phosphorus, while oil is a viscous liquid derived from petroleum or plant sources. They are different substances with distinct uses and properties.
What happens to mineral oil when it is heated?
When mineral oil is heated, it expands and becomes less viscous. If the temperature continues to rise, mineral oil can start to decompose and produce vapors that can be flammable. Additionally, prolonged exposure to high temperatures can cause mineral oil to break down and form harmful byproducts.
Why is honey harder to pour after you have put it in the fridge?
Honey becomes thicker and more viscous when cold because the cold temperature causes its sugars to crystallize. This crystallization process makes honey harder to pour and more solid in texture. Placing the honey jar in warm water for few minutes can help restore its original consistency.
What does oil viscosity refer to?
The viscosity of a liquid is a measure of of "thick" the liquid is. E.g. Honey is very viscous, while water is not. In terms of motor oil, more viscous oil will thin out less at very high temperatures. Viscosity is represented by the number pair associated with the oil, such as 10/40, where 10 is the low temperature viscosity and 40 is the high temperature viscosity. (scale of 0-60, with 60 being the most viscous)
What does lube oil viscosity refer to?
The viscosity of a liquid is a measure of of "thick" the liquid is. E.g. Honey is very viscous, while water is not. In terms of motor oil, more viscous oil will thin out less at very high temperatures. Viscosity is represented by the number pair associated with the oil, such as 10/40, where 10 is the low temperature viscosity and 40 is the high temperature viscosity. (scale of 0-60, with 60 being the most viscous)
What the most viscous liquid?
The most viscous liquid is thought to be pitch, a derivative of tar. It is so viscous that it flows at an extremely slow rate, appearing solid at room temperature.
Which is the most viscous substance on earth?
Pitch, a derivative of petroleum, is considered the most viscous substance on earth. It has a viscosity of billions of times that of water at room temperature.
What is the different between 5w20 engine oil and 5w30 engine oil?
30 is a little more viscous (thicker) at operating temperature than 20.
5w20 oil vs 5w30 oil What is the difference?
Both behave the same when cold but the 5W30 is slightly more viscous at high (engine operating) temperature.
Discuss how effective a car suspension damper would be if the oil in the damper was replaced by oil that was much more viscous?
The effectiveness of a car suspension damper after exchanging the oil in the damper with oil that is much more viscous is increased. The viscous oil gives a smoother and a more powerful effect to the suspension damper.
What is sesame oil like?
Sesame Oil has a very strong fragrant smell. It's moderately viscous, slightly more than most oil (Comparable to good Olive Oil).
What is the most viscous fraction in crude oil?
The most viscous fraction in crude oil is the residue left over after refining, known as bitumen or heavy oil. It is thick and heavy, with a high viscosity due to its high content of long-chain hydrocarbons.
Is Ostwalds viscometer used to measure viscosity of more viscous oil?
Yes, the Ostwalds viscometer can be used to measure the viscosity of more viscous oil.
Why does oil become runny when heated up?
When oil is heated, its molecules gain energy and move faster, causing the oil to become less viscous and more runny. The increase in temperature decreases the oil's viscosity, making it flow more easily.
What does ''CST'' mean in terms of types of heavy oil?
"CST" stands for "Centistoke" and is a unit used to measure the viscosity of heavy oil. It indicates how easily the oil flows at a certain temperature, with higher CST values representing thicker, more viscous oil.
