How Much Does Water Weigh?

People from different backgrounds will answer the question, how much does water weigh, differently. Here are some ways of looking at the weight of water.

As cooks See it

Cooks will answer the question, how much does water weigh, in terms of cups, pints, or ounces. After all, cook books don’t specify adding 10 pounds of water into recipes. It’s either 3 cups or a pint of water. Sometimes, cook books use ounces. To consider the weight of water for purposes of discussion, a pint of water is usually from 1.04 to 1.25 pounds heavy. As far as ounces are concerned, 20 ounces of water weigh 1.25 pounds. But cooks would rather have it a pint of water than say a recipe needs 1,25 pounds of water.

As Industrial Workers See It

For industrial workers in a small factory, for instance, the weight of water would rather be spoken of in terms of gallons than in pounds. If a paper factory worker is instructed to pour 8.35 pounds of water to soften recycled paper, there might be some delayed reaction due to confusion. But by just simply saying pour in a gallon of water, the worker can easily relate. A gallon of water weighs from 8 to 10 pounds, to answer the question how much does water weigh. But the proper term to use is the unit term, which is one gallon, rather than the weigh term, which is 8 to 10 pounds.

As Scientists See It

Water, as far as scientists are concerned, weighs differently in different conditions, often depending on the temperature. So they may answer the question how much does water weigh like this: a gallon of water is 10 pounds heavy, if it’s pure water with a temperature of 62 degrees Fahrenheit, and has a barometric pressure reading of 30 inches of mercury. A gallon of ice would read differently in weight.

When chilled to about 3.98 degrees Centigrade, water weighs 8.33 pounds. Fresh pure water is 8.36 pounds heavy. Ice weighs less than water when the temperature is about 80 degrees Fahrenheit. Thus, the weight of water, to scientists, is dependent on what state it is.

Weight of Water in Jupiter and in Space

When taken to space, how much does water weigh? Experts say it would weigh almost zero, though its mass would remain intact. One gallon of water, when taken to Jupiter, would weigh some 19.5 pounds—heavier than how it would weigh on earth due to gravity considerations. Water taken on mountain tops may weigh lighter than how it would weigh on the lowlands due to the same reason—gravity.

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