Fluid liquid в чем разница

Difference between Fluid and Liquid

Fluid and liquid sound like the same thing, right? As in “drink more fluids when you are sick” and “water is a liquid.” Then, what is the difference between the two and in what context does it matter most?

Summary Table

Definitions

Fluid is a term defining the condition of a substance that deforms and flows constantly. It is a phase of matter that includes liquids, gases, plasma, and certain categories of solids made of plastic. A fluid lacks rigidity and it cannot resist sheer force when it is applied to it. Also, it flows and changes shape immediately after.

A liquid is one of the four states of matter, along with gas, solids, and plasma. This state is defined by a volume with no fixed shape. It takes the shape of the container it is placed in. Also, liquids are fluids, in the sense that they flow and do not resist force when applied to them.

Fluid vs Liquid

When you understand the difference between a fluid and a liquid, you understand why all liquids are fluids, but not all fluids are liquid.

Fluid is a condition of specific substances, whereas liquid is one of the phases of matter. The essential characteristic of fluids is that they flow. Also, when defining a fluid substance, you must also mention its viscosity. Liquids, on the other hand, flow and are defined as having volume without a fixed shape.

"Fluids" versus "liquids"?

What is the difference between fluid and liquid?

I’m thinking of this in the context of drink plenty of fluids.

7 Answers 7

A fluid can either be a liquid or a gas; as such, fluid is a hypernym of liquid in this regard. In your example

it’s only idiomatic to use fluids instead of liquids. (I wonder what else could be drunk besides a liquid/fluid, anyway!) You also hear things like:

In day-to-day usage, one will find liquid only used when the state of matter of a substance is in question or important to note. For example:

When ice-cream is involved, melted is more likely to be used instead of liquid. One may also find liquid used in a financial context:

Fluid just sounds smoother and it rolls off the tongue much easier. That probably explains why it’s more commonly used in place of liquid. People would probably use gas if they wanted to be specific. Here are some common idiomatic phrases:

• body fluids
• engine fluid
• transmission fluid
• poisonous liquid
• hot liquid
• toxic fluid[s]
• liquid coolant
• cooling fluid

From the above examples, you may notice that fluid tends to be used for a liquid substance that has a specified/particular purpose. Thus, transmission liquid would be unidiomatic, for instance.

A liquid is a state of matter in which the molecules move freely but tend not to separate; e.g. water at room temperature. A fluid is simply something that flows, be it gas, or liquid.

Fluid describes a substance that has no fixed shape and changes shape freely based on outside influences. It can describe two states of matter: gas and liquid. To think of it another way, a liquid is a fluid, but a fluid is not necessarily a liquid.

In general usage, «liquid» and «fluid» are synonyms.

In a scientific context they are not.

«Liquid» is a state of matter: solid, liquid, gas, plasma, Bose-Einstein condensate

«Fluid» describes certain properties generally attributed to substances in a liquid state

Fluids display such properties as:
* not resisting deformation, or resisting it only lightly (viscosity), and
* the ability to flow (also described as the ability to take on the shape of the container).

The degree of fluidity depends on the substance and the prevailing conditions (e.g. temperature and pressure).

Consider water, motor oil and maple syrup. At room temperature, they are all liquids. As the temperature drops, all three liquids get denser and flow more slowly.

At 32° F / 0° C water becomes a solid (ice) and no longer flows. Motor oil and maple syrup continue to flow, but the syrup flows more slowly.

Fluid liquid в чем разница

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можно было бы вывести какое-то правило, но на самом деле надо смотреть в каждом случае отдельно.

Скажем, принято, что магнитная жидкость — именно magnetic fluid. Но жидкие кристаллы — это только liquid crystals.

Еще fluid (в отличие от liquid) может употребляться в значении не только жидкости, а вообще чего-то текучего. Кстати, в определенном научном смысле газ — это тоже fluid, но не liquid (см. http://www.bartleby.com/64/C004/026.html).
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Оба слова отлично могут быть и существительным и прилагательным, это же английский язык.
fluid как прилагательное иногда следует переводить как «жидкостный» а не «жидкий», это без учета смыслов «текучий, подвижный». fluid phase, fluid cleaner.

В техническом контексте, и именно для существительных, как мне кажется, fluid — это чаще жидкость, которой положено находится в данном месте и которая имеет заданные или известные свойства (рабочая жидкость, электролит, смазка, моющее вещество), а liquid — какая то жидкость, (жидкости) которая появилась не совсем на месте (в корпусе прибора, ), или любая жидкость, которая может где то оказаться (в цистерне, в бочке, в трубопроводе). Но это только мое впечатление от ряда технических текстов.

liquid — flowing freely like water; having the properties of a liquid : being neither solid nor gaseous

fluid — более общий термин, any liquid or gas or generally any material that cannot sustain a tangential, or shearing, force when at rest and that undergoes a continuous change in shape when subjected to such a stress

По всем нашим словарям они проходят как синонимы. В конечном итоге все зависит от словосочетания. Есть масса устойчивых выражений, когда сложно объяснить логически, почему именно это прилагательное идет в связке с конкретным существительным.

для английского уха это не синонимы, не все же знают что по русски это одно и то же слово. слова liquid and fluid иногда вазимозаменяемы, но не так уж часто. рассмотрим их смысл как прилагательных (adjectives):

fluid — текучий, т.е., обладающий свойством текучести, так, например, both gases and liquids are fluid

What is difference between liquid and fluid?

A fluid is a substance that lacks rigidity it cannot resist force when it is applied to it. Liquids can assume the shape of any container or vessel, and they are relatively incompressible. These are some differences between fluid and liquid.

Is water a fluid or liquid?

Water is an example of a liquid. Water can flow, but it also remains in an open container because of the forces between its atoms.

Why liquid is called fluid?

Liquids and gases have the tendency to flow, i.e., their molecules can move freely from one place to another. Therefore, they are known as fluids.

What is the example of fluid and liquid?

However, an important difference exists between them; liquid describes a state of matter—as do «solid» and «gaseous»—whereas a fluid is any substance that flows. Nitrogen gas, for example, is a fluid, whereas orange juice is both a liquid and a fluid.

What is called fluid?

fluid, any liquid or gas or generally any material that cannot sustain a tangential, or shearing, force when at rest and that undergoes a continuous change in shape when subjected to such a stress.

Difference between FLUID & LIQUID

25 related questions found

What is an example of fluid?

Substances that can flow are called fluids. e.g. gases (oxygen, hydrogen), liquids (water, petrol, sulphuric acid).

Is water called fluid?

Consequently, the term fluid includes water and gas. It is a phase of matter that contains liquids, gases, plasma, and some types of plastic solids.

What are 5 examples of fluids?

• Water.
• Air.
• Blood.
• Mercury.
• Honey.
• Gasoline.
• Any other gas or liquid.

What are the 3 types of fluids?

• Steady or unsteady.
• Compressible or incompressible.
• Viscous or non-viscous.
• Rotational or irrotational.

Are fluids only liquids?

In physics, a fluid is a liquid, gas, or other material that continuously deforms (flows) under an applied shear stress, or external force. They have zero shear modulus, or, in simpler terms, are substances which cannot resist any shear force applied to them.

What is the fluid of water?

Its chemical formula, H₂O, indicates that each of its molecules contains one oxygen and two hydrogen atoms, connected by covalent bonds. The hydrogen atoms are attached to the oxygen atom at an angle of 104.45°. «Water» is also the name of the liquid state of H₂O at standard temperature and pressure.

What state is a fluid?

Fluid is one of the two states in which matter can exist, the other being solid. In the fluid state the matter can flow; it will, in general, take the shape of its container. At rest a fluid is not able to sustain shear forces.

What are two types of fluid?

All fluids can be broken down into two basic types, Newtonian, and non-Newtonian.

What are types of fluid?

• Ideal fluid.
• Real fluid.
• Newtonian fluid.
• Non-Newtonian fluid.
• Ideal plastic fluid.
• Incompressible fluid.
• Compressible fluid.

What are the two forms of fluid?

A fluid can be divided into two categories: incompressible and compressible fluids. Generally, fluids in a liquid state, like water, are incompressible fluids because their density essentially stays constant when the pressure changes.

Which food is fluid?

Most food naturally contains water, including fruits, vegetables, meat and bread. These foods are often not considered when tracking fluid intake. Beverages like water, coffee drinks, shakes, juice and soda are obvious sources of liquid. Ice, sherbet, gelatin and soup also count as fluid.

Is fluid a liquid or gas?

Fluids (Liquids and Gases)

Liquids and gases are called fluids because they can be made to flow, or move. In any fluid, the molecules themselves are in constant, random motion, colliding with each other and with the walls of any container.

Is milk a liquid?

Milk is the liquid produced by the mammary glands of mammals, including humans.

Is oil a fluid or liquid?

oil, any greasy substance that is liquid at room temperature and insoluble in water.

Is water a solid or fluid?

Under standard atmospheric conditions, water exists as a liquid. But if we lower the temperature below 0 degrees Celsius, or 32 degrees Fahrenheit, water changes its phase into a solid called ice.

Is ice a fluid?

Ice is the solid state of water, a normally liquid substance that freezes to the solid state at temperatures of 0 °C (32 °F) or lower and expands to the gaseous state at temperatures of 100 °C (212 °F) or higher.