How to convert weight from kilograms to liters. How many kilograms in a liter

: 1 l \u003d 1 dm³ \u003d 0.001 m³. This definition was adopted in 1964 at the 12th General Conference on Weights and Measures.

Non-metric units

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Notes

Literature

Notes

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See what "Liter" is in other dictionaries:

liter- liter, and ... Russian spelling dictionary

liter- liter / ... Morphemic spelling dictionary

- (French litre, from Greek litra a measure for liquid bodies). In France, a measure of capacity = 1/12 of a bucket or 1/2 of a garnet. Dictionary of foreign words included in the Russian language. Chudinov A.N., 1910. LITER in France, Belgium and other Western countries. Europe unit ... ... Dictionary of foreign words of the Russian language

LITER, liter, husband. (French liter). A measure of capacity equal to 1000 cm3 and containing 1 kg of water (at 4 ° Celsius heat). || The amount of liquid in 1 liter. Liter of milk. Buy a liter of wine. || Dishes with a capacity of 1 liter; the same as a litre. ... ... Explanatory Dictionary of Ushakov

liter- a, m. liter m. 1. A measure of capacity equal to 1000 cubic meters. see, as well as the amount of liquid of this volume. Wait. 1986. A new French measure defined for the measurement of retail liquids and seeds. Jan. 1804 2 577. Moreover, in places, with broken ones ... ... Historical Dictionary of Gallicisms of the Russian Language

BUT; m. [French. litre] A unit of volume and capacity in the metric system, a measure of liquid equal to 1000 cubic centimeters. L. milk. Buy three liters of kvass. Drink a liter of water. Pour twenty liters of gasoline into the canister. * * * Liter (French… … encyclopedic Dictionary

LITER, a unit of measurement equal to a cubic decimeter, one thousandth of a cubic meter. According to another definition, which was used in 1901-1968, 1 liter is equal to the volume of one kilogram of pure water at t°=4 °C. A liter is equal to 0.22 English ... ... Scientific and technical encyclopedic dictionary

LITER, a, husband. A unit of volume and capacity equal to 1000 cubic meters. cm, as well as the amount of liquid of this volume. | adj. liter, oh, oh. Explanatory dictionary of Ozhegov. S.I. Ozhegov, N.Yu. Shvedova. 1949 1992 ... Explanatory dictionary of Ozhegov

- (French litre) a unit of volume and capacity in the metric system of measures; marked L. 1 l 1 dm³ 0.001 m³ … Big Encyclopedic Dictionary

M. 1. Unit of volume and capacity, equal to 1000 cubic centimeters. 2. The amount of liquid of this volume. 3. unfold Dishes of this capacity. Explanatory Dictionary of Efremova. T. F. Efremova. 2000... Modern explanatory dictionary of the Russian language Efremova

- (French litre) (l, 1), unit of volume and capacity (capacity) in metric. system of measures; 1 l \u003d 1 dm3 \u003d \u003d 0.001 m3 \u003d 1000 cm3, i.e. 1000 ml. Physical Encyclopedic Dictionary. Moscow: Soviet Encyclopedia. Editor-in-Chief A. M. Prokhorov. 1983... Physical Encyclopedia

Water is a vital liquid for the existence of all living things. Dehydration leads to the death of any living organism. In this regard, various studies of water have been carried out for a long time.

History of water

When asked how much a liter of water weighs in kilograms at different times, they answered differently. So, back in 1793, they adopted today's unit of measurement of liquid - a liter.

Already in the 20th century (1901), experts confirmed the equality of 1 liter of water to one kilogram of the same liquid.

In order not to get confused in these measures, in 1964 the International Committee again equalized the measures of a liter and a cubic decimeter. To maintain this balance, it is important that the water is pure, without additives. Ordinary drinking water contains

What affects the weight of water?

From the lessons of physics, we know that there are some differences between mass and volume. Mass measures the size of an inert body, and it is determined by kilograms.

• Pressure (atmospheric);
• Temperature;


• Aggregate state of the liquid;
• Type of water (with salt, fresh);
• Type of hydrogen isotope.

At different states of aggregation, the density of water changes. Thus, the maximum density is observed at the moment of freezing of the liquid. If the temperature in

The mass of salt water is slightly increased. So, 1 liter of salty liquid weighs 1 kilogram and 24 grams. It also affects atmospheric pressure.

How many kilograms are in 1 liter of water?

If we take into account all indicators, external factors, it is fashionable to calculate the weight of a liquid in 1 kg. How many kilograms are in 5 liters of water? So, at room temperature of 20 degrees Celsius, and atmospheric pressure of 760 millimeters of a mercury column, the mass will be as follows:

• 1 liter = 1 kilogram;
• 5 liters = 5 kilograms;
• 10 liters = 10 kilograms.

In the case of other temperature "plus" values, the mass of 1 liter of water will be 998.6 grams. The liquid from the tap is also different from pure distilled. To identify the mass of tap water, you need to determine what impurities it contains. Based on chemical indicators, the weight of the liquid will be calculated using a special formula.

What determines the mass of water?

According to the laws of physics, there is a difference between weight and mass. If we talk about weight, then we mean the force of the impact of a body of a certain mass on the surface. And the term "mass" denotes a quantitative measure of the inertia of the body, which is measured in kilograms. In our article we are talking about the mass of water.

How much does a liter of water weigh? This indicator depends on:

• temperature
• atmospheric pressure
• water conditions (liquid, ice, snow)
• salinity of water (fresh, salty)
• types of hydrogen isotopes

So the weight of water depends on all the above factors, which together determine the value of this indicator.

How much does a liter of water weigh - a bit of history

At different times, the answer to this question was not the same. But the annual consumption of water in the world is extremely large! Therefore, it was necessary to make a general decision regarding the measurement of the mass of the liquid. So, in 1964, during the international conference on weights and measures, a unit was approved, denoting the volume of 1 dm 3 of water - a liter.

However, this unit means, rather, not weight, but volume. In this case, the weight can be completely different - for example, a liter of water will be much heavier than a liter of gasoline due to its greater density.

In 1901, the Third International Conference on Weights and Measures decided to designate a liter as the volume of 1 kg of water at a temperature of 3.98 ° C and an atmospheric pressure of 760 mm Hg. The main difference between the designation of a liter was that in 1901 this unit was considered the volume of a kilogram, and in 1964 - only the volume, while the weight of the substance could be different.

So in the period 1901-1964. the weight of a liter of water was equal to one kilogram, however, subject to the above indicators of temperature and atmospheric pressure. To maintain this equality, it is also necessary that the water be clean. After all, ordinary drinking water contains salts that have a different effect on its density. Is there a difference between swimming in a fresh lake and salt water? Of course, the latter is unlikely to drown. So in order for a liter of water to be equal to a kilogram, the liquid must be distilled, obtained by evaporation and condensation of steam.

How to determine how much one liter of water weighs?

To conduct such an experiment, we need a glass or plastic jar, measuring utensils, electronic scales and distilled water. First you need to determine the mass of the can with the help of scales and write down the resulting figure. Pour a liter of water into a measuring dish, pour into a jar and weigh again. Now you need to subtract the mass of the can - the result will be about one kilogram. Such scales can be used to determine the mass of other liquids, such as milk.

If you want to get a more accurate indicator, you must comply with the conditions of temperature (4˚С) and pressure (760 mm Hg). Then the mass of water will be 998.5 g.

Tap water, when weighed, will show slightly different results than distilled water. The fact is that impurities of heavy metals may be present in tap water, which increases the mass of one liter of water. Special formulas are also used to calculate the mass of 1 liter of water.

Now we know how much 1 liter of water weighs, what factors affect the weight of a liter of water and how to calculate the mass of water experimentally.

Sometimes, in order to solve some practical problem, housewives have to look for an answer to the question: how many kilograms of this or that product are in a liter?

There is, of course, no single answer to this question. It all depends on the density of this very product.

How to determine the mass of a liquid if its volume is known

The exact mass of the liquid is calculated by the formula:

m = p * v, where:

• m is the mass (in kg);
• p - density (in kg / m 3);
• v - volume (in m 3).

Recall that 1 l \u003d 0.0001 m 3.

However, it is, of course, inconvenient to calculate the mass each time using the formula. Therefore, we present ready-made values ​​of what is the mass of 1 liter of some products.

How many kilograms of water in a liter

The easiest will be with water. The fact is that in 1901, the weight of 1 kg of water was determined by a liter. Although here, too, there are nuances. Firstly, the weight of 1 liter of water is equal to 1 kg only at an atmospheric pressure of 760 mm Hg. Art. and a temperature of 3.98ºС. Under other conditions, the density of water changes and, accordingly, its mass changes. Secondly, it turned out that the mass of the kilogram standard is slightly greater than the mass of 1 liter of water. And since 1964, 1 liter to 1 kg of water, strictly speaking, is no longer attached. But in everyday life, of course, we do not need to go into such details. You can simply remember that 1 liter of water weighs about 1 kg.

How many kilograms of other liquids are in a liter

In one liter:

• milk - 1.029 g;
• kefir - from 1.027 to 1.039 kg (depending on the percentage of fat content);
• juice without pulp - about 1 kg;
• juice with pulp - about 1,050 kg;
• wine - 0.975-0.990 kg;
• alcohol - 0.789 kg,
• sunflower oil - 0.920-0.930 kg.

Read another article on this topic.

A liter is a unit of volume for liquid substances. It is also permissible to measure bulk solids with a sufficiently fine fraction in liters. For other solids, the concept of a cubic meter (decimeter, centimeter) is used. The definition of the term and concept of a liter was formulated by the General Conference on Weights and Measures in 1901. The definition is as follows: 1 liter is the volume of one kilogram of pure fresh water at an atmospheric pressure of 760 mm Hg and a temperature of +3.98 ° C. At this temperature, water reaches its highest density.

Having crossed the temperature threshold of +3.98°C, the density of water begins to decrease again, and at +8°C it again reaches the same values ​​as at zero.

What's harder?

If, for example, water is poured into a vessel, it will have a volume equal to one liter. If you freeze this water, then with the same mass of 1 kg, the water, freezing, will tend to take up more space in the vessel. A closed vessel, limited to a capacity of 1 sq. dm (1 liter), the ice will break. It turns out that with the same mass of liquid and frozen water, the ice will have a larger volume, which will violate the original condition.

If you freeze a liter with 1,000 ml of water (1 liter), then approximately 80 ml of water will pour out of it during the hardening process. And to get 1 liter of ice, it is enough to freeze 920 ml of water.

Freeze and Restore

Today it is more and more difficult to find pure natural water. Especially in the conditions of the city, where, before entering the apartment, it is filtered, chlorinated, and subjected to other types of physical and chemical treatment. Clean water is becoming scarce, the cost of water produced from artesian wells is growing. However, water, it turns out, restores its original structure and energy after freezing - it is purified. Therefore: drink melt water! No wonder all plants react so well to it in spring and animals drink with pleasure.

Litre may seem rather stupid to an ignorant person. "Of course one!" he will answer. And he'll be wrong. We are used to thinking that if the measure of weight of solid (or bulk) substances is measured in kilograms, then liquids are measured in liters. But it's not.

A liter is for liquids. It is only equal to a cubic meter. This is such a measure of the coverage of solids - firewood, for example. That is, this is such a conditional cube, each face of which is equal to 10 cm. Of course, it never occurs to anyone to compare a kilogram with a meter!

However, (by volume it is directly related to weight. Therefore, the question: “How many kilograms are in a liter?” Is not so idle. You just need to take into account one more measurement parameter, namely the density of the substance inserted into this volume. The higher this indicator, the greater the weight Let's recall the experience that we were shown in the second grade at the lesson of natural history. Two empty identical cans were placed on the scales. A candle was lit under one of them. The fire heated which, at the same time, went down. The can with cold air became heavier.

It is possible to link volume and weight in this way: if you drink more than the daily norm per liter of water every day, then after some time you can lose two kilograms of weight. This conclusion was made by scientists at the Virginia Institute of Technology, based on the research. But how to calculate how many kilograms are in a liter? In simple terms, it is equal to density times volume. What does this give us in everyday life? We do not know, for example, the density of sour cream or honey. In addition, this indicator is very unstable, because it even depends on weather conditions!

Yes, the density of a substance can change with temperature, humidity and atmospheric pressure. As a result, this will affect how many kilograms are in a liter. Remember another experiment from school science: hot bodies increase in volume. Oh, by the way, and a corked bottle full of water can burst if you put it in the cold. In the kitchen, it is good to have a special measure. It looks like an ordinary jug. However, on the walls of this vessel there are marks indicating the level of a kilogram of granulated sugar, vegetable oil, flour and milk.

Going to the market and asking the price of gardeners' products, which are usually sold in jars, we often wonder how many kilograms of berries are in a liter. After all, here, in addition to the density of the "Kalinka-Malinka" itself, other factors also play a role. For example, the number of gaps between the berries. That is, the larger the fruit, the more air in the jar will be sold to you. Thus, a liter contains 600 g of raspberries or blackberries, 800 g of cherries, cherries and blueberries, 850 g of gooseberries, 550 g of cranberries and only 400 g of strawberries.

Well, how many kilograms are in a liter of water? In 1901, the Third General Conference on Standards of Measure determined that a liter of water equals a kilogram only if:

• distilled liquid;
• her temperature is 3.98 degrees Celsius;
• atmospheric pressure is 760 mmHg.

If at least one of these parameters is violated and does not coincide with the others, the mass of a liter of water is less than a kilogram: at zero temperature it weighs 999 g, at 35 degrees Celsius - 994 g, at 90 degrees - 965 g.