Why is the Density of Water almost the same as

In summary, the conversation discusses the relationship between the density and weight of water in English units. The question is raised about why the density of water is almost the same as its weight, and it is suggested that this is relevant to the topic of hydrostatic pressure and force. Additionally, a link is provided to a document that mentions the weight density of fresh water and its conversion to mass density. Ultimately, it is noted that the weight density of fresh water is approximately 62.5 pounds force per cubic foot, while the mass density is approximately 1.99 slugs per cubic foot.
  • #1
johnhuntsman
76
0
Why is the density of water almost the same as its weight (in English units)? This isn't really a homework question per se, but it's somewhat germane to what I'm doing right now (hydrostatic pressure and hydrostatic force).

[Edit]
Or at least part a of the first question on page 5 here seems to suggest so:
https://mymission.lamission.edu/userdata/yunyh/docs/Math266Stewart/M266 Key Exam 2.pdf
[Edit]
 
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  • #2
Because you have used the weight density of fresh water, which is approx. 62.5 pounds force per cubic foot. The mass density of fresh water is approx. 62.5 / 32.2 = 1.99 slugs per cubic foot.
 
  • #3
Alright then. Thanks.
 

1. Why is the density of water almost the same as other substances?

The density of water is determined by the size and arrangement of its molecules. Water molecules are relatively small and have a unique shape that allows them to pack closely together, resulting in a high density. This density is similar to other substances with similar molecular sizes and arrangements.

2. How does the density of water compare to other liquids?

The density of water is higher than most other liquids due to the relatively strong hydrogen bonds between its molecules. This results in a tightly packed, organized structure that contributes to its high density.

3. What factors affect the density of water?

The density of water can be affected by temperature and pressure. As water is heated, the molecules gain energy and move further apart, resulting in a decrease in density. Conversely, at higher pressures, the molecules are forced closer together, increasing the density.

4. Why is the density of water important?

The density of water is important for many reasons. It plays a crucial role in the Earth's water cycle, as the density difference between liquid and solid water allows for ice to float on top of liquid water. This helps regulate the Earth's temperature and provides a habitat for aquatic life. Additionally, the density of water is used in many industries such as agriculture, manufacturing, and transportation.

5. How is the density of water measured?

The density of water is typically measured using a hydrometer or a densitometer. These instruments measure the mass of a given volume of water and compare it to a standard value. The resulting ratio is known as the density, typically expressed in units of grams per cubic centimeter (g/cm³).

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