How much gallon of water weigh

This results in a decrease in the density of water. Therefore, the density of the cold water is greater than it would be in the hot water. Water has a maximum density at At this temperature, a gallon of water weighs around 8. The temperature of the water can affect the density of water. It is defined as the weight per unit volume of a material. Example Problem-Density of Water. The mass of 5 liters of water is 5 kg. Solid water ice is less dense than liquid water.

Every water molecule is made up of two hydrogen atoms bonded to one oxygen atom. Water behaves abnormally when cooled, due to its molecular structure. Beyond this point, its volume increases and becomes more than the initial volume. The three sizes of measurements are significantly different with an imperial gallon defined as 4. How much does a gallon of water weigh?

This is one of the questions that is widely dodged or inaccurately answered by many. Some people have estimated the answer to this question to be between 5 and 15 pounds. Some people trying to be smart have treated it as a tricky question without an exact answer.

Other people will go as far as asking the temperature of water. However, the definition was discarded since the density of water is affected by changes in temperatures and atmospheric pressure. The answer is simple; a gallon of water weighs about 8. As we mentioned briefly above, temperature has an effect on the density of water, and thus its precise weight will vary with the temperature.

As the temperature of water rises, it expands, causing it to increase in volume slightly. At a molecular level, as the temperature rises, the heat of the water molecules increases, which increases their energy. As the energy in the molecules rises, the particles within move and vibrate more, causing them to take up more space. Thus, the warmer the water is, the more volume it will consume, and the lower its density will be. The chart below shows the density of water at various temperatures, according to the US Department of the Interior.

We mentioned above that one gallon of water weighs 8. Atmospheric pressure decreases as altitude increases. Search for:. Easy Calculation. Related Posts. I usually just try to remember: 8.