a fixed quantity of

USAGE SUMMARY

The phrase "a fixed quantity of" is correct and usable in written English.
It can be used when referring to a specific, unchanging amount of something, often in scientific, mathematical, or economic contexts. Example: "In the experiment, we measured a fixed quantity of water to ensure accurate results."

✓ Grammatically correct

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

44 human-written examples

Synthetic standard solutions of 40 mg L−1 with a fixed quantity of adsorbent, fixed time, and fixed temperature were used.

Applied Water Science

In the present paper in the gasifier operation, there is a fixed quantity of char that is combusted to gasify a fixed amount of wood, and the gasifier does not operate in a steady state manner.

Fuel Processing Technology

And taxpayers will subsidise a fixed quantity of electricity and water for every household.

The Economist

This pump delivers a fixed quantity of water with each cycle of a piston or rotor.

Encyclopedia Britannica

Gold standard, monetary system in which the standard unit of currency is a fixed quantity of gold or is kept at the value of a fixed quantity of gold.

Encyclopedia Britannica

The provision, known as take-or-pay, requires that they pay for a fixed quantity of gas, regardless of whether they use it.

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

16 human-written examples

"Nothing," says Murrin, "is a fixed quantity for travelers on the Silk Road-least of all the land.

University of Chicago

According to the theory of relativity, the velocity of light is a fixed quantity independent of the velocity of the emitter, the absorber, or a presumably independent observer, all three of which do affect the velocities of common wavelike disturbances such as sound.

Britannica

Contrary to a psychological tradition that tends to view intelligence as a fixed quantity, much of the research of Project Zero and others' indicates that students can and do learn ways of thinking that can boost their performance.

Harvard University

"In a cost-plus contract situation, the direct purchaser is insulated from any decrease in its sales as a result of attempting to pass on the overcharge, because its customer is committed to buying a fixed quantity regardless of price.

Cornell University

According to this view, range health and/or degradation can be measured by progress toward the climax state, and carrying capacity can be measured as a fixed quantity irrespective of rainfall (except possibly drought).

Pastoralism

Expert writing Tips

Best practice

When using "a fixed quantity of", ensure the context clearly indicates what the quantity refers to, and why it is important that it remains constant. For example, "The experiment required a fixed quantity of reagent to ensure accurate results."

Common error

Avoid using "a fixed quantity of" when the quantity is not truly fixed or is subject to variation. Using it inappropriately can mislead your audience.

Linguistic Context

The phrase "a fixed quantity of" functions as a determiner phrase specifying a particular amount of something. This highlights the specific and unchanging nature of the quantity being referred to. Ludwig's examples show its use in scientific experiments and economic contexts.

Expression frequency: Very common

Frequent in

Science

65%

News & Media

15%

Encyclopedias

10%

Less common in

Academia

5%

Formal & Business

3%

Reference

2%

Ludwig's WRAP-UP

In summary, the phrase "a fixed quantity of" is a common and grammatically correct way to indicate a specific, unchanging amount. Ludwig AI confirms its validity and provides numerous examples across diverse fields such as science, news, and encyclopedias. It is particularly useful in formal and technical contexts requiring accuracy and consistency. When employing this phrase, ensure the context clarifies the quantity being referenced and its importance in remaining constant. Alternatives like "a set amount of" or "a constant amount of" can be used depending on the specific nuance you wish to convey.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

a predetermined quantity of

Adds emphasis to the fact that the quantity was decided in advance.

a set amount of

Focuses on the established or predetermined nature of the quantity.

a constant amount of

Emphasizes the unchanging nature of the quantity.

a defined measure of

Highlights the precise and established nature of the quantity.

a specific volume of

Replaces "quantity" with a more concrete term, indicating the amount of space occupied.

a prescribed dose of

Suggests a regulated or recommended amount, often in medical or scientific contexts.

a given portion of

Implies that the quantity is predetermined or allocated.

a standard measure of

Indicates the quantity follows an official or commonly accepted standard.

a regulated amount of

Suggests the quantity is controlled or governed by rules.

a controlled quantity of

Highlights the controlled conditions under which the quantity is used.

FAQs

How can I use "a fixed quantity of" in a sentence?

Use "a fixed quantity of" to indicate a specific, unchanging amount. For example: "The recipe requires a fixed quantity of flour." or "We administered a fixed quantity of the drug during the trial."

What are some alternatives to "a fixed quantity of"?

You can use alternatives like "a set amount of", "a constant amount of", or "a specific volume of" depending on the context.

Is it correct to say "a fixed amount of quantity"?

No, it's redundant. "Quantity" already implies an amount. The correct phrase is "a fixed quantity of".

In what contexts is "a fixed quantity of" most appropriate?

"A fixed quantity of" is most suitable in scientific, mathematical, or technical contexts where precision and consistency are important. It's also appropriate in formal writing where you need to emphasize the unchanging nature of an amount.