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Weight of Water Compared to Weight of GasolineAt a temperature of 20 oC or 68 oF, a (U.S.) gallon of pure water weighs about 8.34 pounds, whereas a gallon of vehicular gasoline weighs about 6.15 pounds at that temperature.

Diesel weighs about 7.1 pounds per gallon.

Though the question is appears to be about weight, it is actually about density, which is weight per unit volume.

The SI-Unit of density is the kilogram per cubic metre, and expressed in those units, the densities are these:

Water: 998 kg/m3

Gasoline: 720 kg/m3

Diesel: 830 kg/m3

You see this when gasoline and water are put into a glass: because they are immiscible and the density of gasoline is lower, it will stay at the top. (Be careful when doing this as gasoline vapor is explosive and toxic!)

In the bathyscaphe Trieste, a research submarine designed to go to the deepest point of the Pacific Ocean, the bathyscaphe was filled with gasoline, which was buoyant in the ocean water. It carried steel shot as ballast to make it sink, and the gasoline provided the "lift", similar to a balloon in the air.

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12y ago
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17y ago

Yes and no. If you have 1 kg of gasoline and 1 kg of water, they weigh the same since they are both 1 kg. Now if you have the same volume of water and gasoline their weights would be different since gasoline is less dense than water.

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13y ago

Since water is considerably more dense than gasoline, 1 liter of water would have greater mass. The approximate mass of 1 liter of water would be 1000 grams (the exact mass would depend on the temperature, pressure and any impurities in the water). The approximate mass of 1 liter of gasoline is about 737 grams. The exact value would again depend on the temperature, pressure, and especially on the composition since "gasoline" is only a broad term for a mixture of hydrocarbons that will work in most internal combustion engines.

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5mo ago

Gasoline is less dense than water, so it weighs less. The weight of a gallon of gasoline is about 6.3 pounds, while a gallon of water weighs about 8.3 pounds.

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10y ago

Gasoline is 6.3 pounds per gallon while plain (tap) water is 8.35 pounds per gallon.

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Q: What is weight of Gasoline versus water?
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How do you calculate weight of gasoline in tank?

To calculate the weight of gasoline in a tank, you would need to know the volume of gasoline in the tank and its density. Multiply the volume by the density to get the weight. The density of gasoline can vary depending on factors such as temperature and composition.


Weight of a Gallon of gasoline?

The weight of a gallon of gasoline is approximately 6.3 pounds.


Which has greater mass water or gasoline?

Gasoline has greater mass than water because gasoline is less dense than water, meaning the same volume of gasoline weighs more than the same volume of water.


How much water is produced while burning one gallon of gasoline?

Burning 1 gallon of gasoline produces 1.52 gallons of water. How this is calculated:1 gallon of gasoline weights 8.66lbs, of which 1.4 lbs is Hydrogen, as gasoline contains 16% Hydrogen and 84% carbon by weight.This assumes gasoline has the chemical formula of C8H18, the same as Octane.Water is 11% Hydrogen and 89% Oxygen by weight. One gallon of water weights 8.35lbs, and contains .92 lbs of Hydrogen, and 7.43 lbs of oxygen.Therefore since hydrogen burned or in, equals hydrogen out after combustion, therefore 1.4 lbs of hydrogen burned, equals 1.4 lbs of hydrogen in the H20 or water created in combustion. By weight, 1.4 lbs of hydrogen divided by the weight of .92 lbs of hydrogen in water, equals 1.52. So 1.4 lbs of hydrogen in 1 gallon of gasoline, is converted to more gallons of water because gasoline contains more hydrogen per gallon, then does water.


What is the difference in weight between gallon of water and gallon of gasoline?

Equivalent in what way? Gasoline and water are two entirely different chemical compounds. They have dissimilar physical and chemical properties because, well, they are different. Perhaps you are referring specifically to the weight of a gallon of each. If so, then the weight of a gallon of each substance is not equivalent because the gas is less dense than water, so a gallon of water weighs more. When referring to volume, a gallon of gas is equivalent to a gallon of water. Even a gallon of oxygen is equivalent to a gallon of water, in reference to volume. However, when dealing with gases, pressure, temperature, and the number of molecules of the gas must be taken into account.

Related questions

Why does water weigh more then gasoline?

Water is denser than gasoline because the molecules in water are closer together, leading to a higher mass per unit volume compared to gasoline. This means that the weight of a given volume of water will be greater than the weight of the same volume of gasoline.


What makes gasoline heavier than water?

Gasoline is made up of hydrocarbon molecules that are heavier than water molecules. This difference in molecular weight causes gasoline to be denser than water, making it float on top when the two are mixed. Additionally, gasoline contains additives that further contribute to its heavier weight compared to water.


What is the difference in weight between a gallon of water and a gallon of gasoline?

The mass of water is with 20-30 % higher.


How do you calculate weight of gasoline in tank?

To calculate the weight of gasoline in a tank, you would need to know the volume of gasoline in the tank and its density. Multiply the volume by the density to get the weight. The density of gasoline can vary depending on factors such as temperature and composition.


What is the specific weight of gasoline?

The specific weight of gasoline is 6.073 pounds per gallon. The density of gasoline varies due to the quality of the gasoline, but is generally between 0.71-0.77 kilograms per liter.


Weight of a galion of gasoline?

The weight of a gallon of gasoline is approximately 6.3 pounds at 60 degrees Fahrenheit.


Weight of a Gallon of gasoline?

The weight of a gallon of gasoline is approximately 6.3 pounds.


Does gasoline dissolve in in water?

No. Gasoline is an oil product and does not mix with water.


Does the Gasoline is denser than pure water?

Yes, gasoline is less dense than pure water. Gasoline has a lower density than water, which is why gasoline floats on top of water if they are mixed together.


Why do cars work with gasoline and not water?

Because water is not a flammable substance and gasoline is.


Gasoline weight per gal?

Gasoline weighs about 6.2 lbs per gallon.


Which has greater mass water or gasoline?

Gasoline has greater mass than water because gasoline is less dense than water, meaning the same volume of gasoline weighs more than the same volume of water.