All categories

3 years ago

According to the kinetic molecular theory what happens to a liquid then it is transferred from one container to another

2 answers:

5 0

Given that the liquid conserves the volume, when it is changed from one container to another, the kinetic molecular theory predicts no change in the velocity of the molecules, which means that the temperature will not change.

Alinara [238K]3 years ago

5 0

The volume stays the same, but the shape changes to fit the new container.

You might be interested in

Find the number of moles of phosphorus in 825 g of phosphorous.

ArbitrLikvidat [17]

Answer:

Explanation:

remember that the phosphorous formula is P4

n P4 = mass / M.wt

825 / 4x 30.97 =

= 6.660 mole

4 0

3 years ago

A gaseous hydrogen and carbon containing compound is decomposed and formed to contain 82.66% carbon and 17.34% hydrogen by mass.

Romashka [77]

Explanation:

Mole percentage of carbon = $\frac{percentage given}{molar mass of carbon}$

= $\frac{82.66}{12}$

= 6.89

Mole percentage of hydrogen = $\frac{percentage given}{molar mass of hydrogen}$

= $\frac{17.34}{1}$

= 17.34

Now, dividing mole percentage of both the atoms by 6.89.

Then, C = 1 and H = $\frac{17.34}{6.89}$ = 2.5

Hence, empirical formula is $C_{2}H_{5}$ .

As, it is given that P = 556 mm Hg. Convert mm Hg into atm as follows.

$\frac{556 mm Hg \times atm}{760 mm Hg}$

= 0.7316 atm

Volume is given as 158 mL. So, in liter volume is $\frac{158}{1000}$ equals 0.158 L.

According to ideal gas equation, PV = nRT

$0.7316 atm \times 0.158 L = \frac{mass}{molar mass} \times 0.082 atm L/mol K \times 298 K$

$0.7316 atm \times 0.158 L = \frac{0.275 g}{molar mass} \times 0.082 atm L/mol K \times 298 K$

molar mass = 58.2 g

Hence, molecular weight of $C_{2}H_{5}$ is $12 \times 2 + 5$ = 29.

Therefore, $(C_{2}H_{5})_{n}$ = 58

29 × n = 58

n = 2

Thus, molecular formula of the compound is $C_{4}H_{10}$ .

8 0

4 years ago

#7) The atom on the left (pink) in the video is shown in the diagram below. From

ruslelena [56]

Answer:

Explanation:

Remember the number of valence electrons represent the group number. As shown in figure, there is only one electron in the valence shell. Therefore, this element belongs to group 1 elements also called as Alkali metals.

Furthermore, the number of electrons in a neutral atom equals number of protons. Hence, there are 11 protons in this element.

Also, number of protons equal atomic number therefore, the atomic number of this element is 11. And, by checking periodic table, the element having atomic number 11 is Sodium (Na).

6 0

3 years ago

How many electrons would an atom need to have before it can begin filling the 3s sub level?

schepotkina [342]

Well electrons are like electricity well it is partly if it went 3 sub levels the electrons would blow up some electricty<span />

5 0

3 years ago

Energy radiated from a hot object is carried in ___________________.

romanna [79]

Answer:

Photons

Explanation:

A hot object emits photons of various energies, which propagate outwards from the object. When they hit another object, the photons can be absorbed, giving up their energy to the second object. This causes the atoms/molecules etc. to giggle around, rotate, vibrate etc., with the result that the second object heats up.

5 0

3 years ago

Read 2 more answers