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3 years ago

Why do real gases deviate from the ideal gas laws at low temperatures?

2 answers:

8 0

As the molecules of gas interact, they are attracted to each other, following ideal laws, but they also collide with one another, and this makes them deviate from them. High pressures and low temperatures can also cause them to deviate, this is because the more pressure there is or the lower temperature there is, the closer together the molecules are, and the more they collide.

Hope this answered your question!

Yakvenalex [24]3 years ago

6 0

The answer is: The volume of a real gas is larger than expected from the ideal gas equation at low temperatures.

An ideal gas is:

1) made up of molecules which are in constant random motion in straight lines.

2) all collisions are perfectly elastic, there is no loss of kinetic energy during the collision.

3) follows ideal gas law: p·V = n·R·T.

4) the gas particles have negligible volume.

At low temperatures, volume of the gas is not negligible.

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Milk is heterogeneous mixture why

Tanzania [10]

Answer:

Milk is essentially a colloidal dispersion of fat in water. ... However, the fact remains that the fat and water components cannot be mixed together from a solution. There are therefore, two distinct immiscible liquid phase's present, which is why it is a heterogeneous mixture.

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3 years ago

Read 2 more answers

What is the pH of a 0.50 M C6H5NH3Br solution? KbC6H5NH2 = 3.9x10-10 (R = 2.45)

masya89 [10]

Answer:

It commonly ranges between 0 and 14, but can go beyond these values if sufficiently acidic/basic. pH is logarithmically and inversely related to the concentration of hydrogen ions in a solution. The pH to H + formula that represents this relation is: The solution is acidic if its pH is less than 7.

Explanation:

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3 years ago

Explain how might a renewable energy source become nonrenewable

Marysya12 [62]

If you use up renewable resources faster than you can reproduce them, then they're really non-renewable. For example, if you're cutting down trees faster than they're growing, then you'll eventually run out of trees, even though they're "renewable". Technically, oil is renewable, but it takes millions of years to create, so it's non-renewable.

5 0

3 years ago

A 7.028 gram sample of a sodium sulfate hydrate is heated. After driving off all the water, 3.100 grams of the anhydrous salt is

Nady [450]

Answer:

$NaSO_4.10H_2O$

Explanation:

Given that:-

Mass of the hydrated salt = 7.028 g

Mass of the anhydrous salt = 3.100 g

Mass of water eliminated = Mass of the hydrated salt - Mass of the anhydrous salt = 7.028 - 3.100 g = 3.928 g

Moles of water:

Mass of water = 3.928 g

Molar mass of $H_2O$ = 18 g/mol

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Thus, moles are:

$moles= \frac{3.928\ g}{18\ g/mol}$

$moles_{water}= 0.2212\ mol$

Moles of anhydrous salt:

Amount = 3.100 g

Molar mass of $NaSO_4$ = 142.04 g/mol

Thus, moles are:

$moles= \frac{3.100\ g}{142.04\ g/mol}$

$moles_{CaSO_4}= 0.02182\ mol$

The simplest ratio of the two are:

$NaSO_4:H_2O$ =0.02182 : 0.2212 = 1 : 10

Hence, the formula for hydrate is:- $NaSO_4.10H_2O$

7 0

3 years ago

Why isn't the ph at the equivalence point always equal to 7 in a neutralization titration?

Lunna [17]

The pH at the equivalence point always not equal to 7 in a neutralization titration when titration occur between weak acid and weak base , strong acid and weak base or strong base weak acid. The reason behind it is given as,

At equivalence point the product is present by reacting from acid and base.
So, when weak acid titrate with strong base then the solution will be weak base at equivalence point.

When strong acid is neutralize with strong base then it form neutral product at the equivalence point. Hence the final conclusion is that the pH of the solution in which titration is takes place between strong acid and strong base is 7 that is neutral left titration between all type of acids and bases ha pH not equal to 7 .

learn more about equivalence point

brainly.com/question/4518249

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7 0

1 year ago