Is gas denser than water

Answer 1

A mix of solid, liquid and gas can either be lighter than gases or denser than solids even if people can call as solids, liquids or gases and they will be sharing the properties of all the states of matter

However, there are many states of matter

Answer 2

No. Gas is less dense and therefore floats on top of water (as the first guy to answer this question noted). Fresh water weighs approximately 8.33 lbs per gallon and salt water weighs approximately 8.55 lbs per gallon. The saltier the water the more it weighs and the colder it is the more it weighs until it freezes. "Mogas" - the type of gas most commonly sold at U.S. gas stations weighs approx 6.15 lbs per gallon. Premium weighs slightly more. Both weigh less in warm temperatures and more in cold temperatures. They vary between 5.8 lbs per gallon in very hot weather to 6.5 lbs per gallon in very cold weather. Diesel is more dense than regular gas, weighing in at about 7.1 lbs per gallon. It also weighs more per gallon when cold. 100LL " avgas " used in many small aircraft weighs approx 6.02 lbs per gallon at "standard temperature" which is defined as 15 degrees celsius (59 degrees Fahrenheit). Its density increases to 6.4 lbs per gallon at -40 celsius (also -40 F). At 38 degrees celsius (100 degrees F) its density decreases to 5.9 lbs per gallon.

Answer 3

When you say water is "heavier" than gas, you probably are asking if gas will rise from a glass of water and float. This though, is based on density. Density is mass divided by volume. There are many gasses, each with different densities, so this is an inaccurate question.

The density of water is 1 gram per milliliter, or one gram per centimeter cubed. In the metric system, these are the same. Then find the density of the gas you are looking for, and find the density. Compare these answers.

In general, you use density because it shows the mass, or weight, per certain unit. In the same way that 50 grams of gold will be heavier than 1 gram of water, you need to compare the two to measure accurately.

Answer 4

All gases on the Periodic Table that have an atomic number of 9 or more are heavier than water (i.e. fluorine, argon, krypton, etc). These are only elemental gases. There are millions of other gases that are made up of more than one type of atom which are heavier than water.

Regardless of atomic weight though, gasses by definition are less dense than water at standard temperature and pressure. So even though an atom or molecule of a gas is heavier than a molecule of water, its weight is not enough to separate the water molecules to let it pass between them. So, there is no gas that would sink in water. These materials in their liquid state--at higher pressure or lower temperature--would be more dense than water.

Answer 5

Of course there may be individual differences, but in general, gases are less dense than liquids.

Of course there may be individual differences, but in general, gases are less dense than liquids.

Of course there may be individual differences, but in general, gases are less dense than liquids.

Of course there may be individual differences, but in general, gases are less dense than liquids.

Answer 6

Assuming it's in its vapor form, water has a density of 18.0 grams/ 22.4 liters or .804 g/L.

One arrives at these numbers by knowing that the molar mass of any substance is equal to its Amu expressed in grams. 2 H (1.00 Amu) + 1 O (16.0 Amu) = 18.0 Amu.

For All gasses, one mole of gas will under normal conditions take up about 22.4 Liters.

Density is mass/volume so 18.0/22.4 = .804 g/L

The most basic gasses in increasing order of density are therefore

H(2) .090 g/L

He .179 g/L

H(2)O .804 g/L

Ne .897 g/L

Air 1.19 g/L

CO 1.21 g/L

N(2) 1.25 g/L

O(2) 1.43 g/L

F(2) 1.61 g/L

Ar 1.78 g/L

CO(2) 1.96 g/L

Cl(2) 3.13 g/L

Kr 3.74 g/L

Xe 5.89 g/L

Rn 9.91 g/L

Answer 7

Yes, gas is much lighter than water. The reason is that its larger molecules are much less dense than those of water.

Answer 8

Oxygen is a very light gas. However, helium is much lighter than oxygen. This is why helium filled balloons rise.

Answer 9

Water is denser than gas, which is why bubbles of gas will rise in water, rather than sinking.

Answer 10

Of course there may be individual differences, but in general, gases are less dense than liquids.