All categories

3 years ago

Which statement is true according to the kinetic theory?

Chemistry

2 answers:

zhannawk [14.2K]3 years ago

4 0

<span>c.Solids have a fixed shape, so they do not show random motion of particles.</span>

Katyanochek1 [597]3 years ago

3 0

Answer:

The correct answer is option (a).

Explanation:

The very first postulate of kinetic gas theory discuss that the gases have a random motion of particles. The motion of the gas particles continues in a straight lines until or unless they get collide with another particles or with the walls of the containers.

Whereas as other postulates were:

Gas particles are of point masses with no volume.
No molecular forces are at work.
Gas pressure is due to collision of particles with walls of container.
Kinetic energy of the gas particles is measured in Kelvin temperature.
Lighter particles moves with higher speed than heavier gas particles.

You might be interested in

A water treatment plant has 4 settling tanks that operate in parallel (the flow gets split into 4 equal flow streams), and each

ale4655 [162]

Answer:

a) When the 4 tanks operate in parallel the retention time is 1.26 hours.

b) If the tanks are in series, the retention time would be 0.31 hours

Explanation:

The plant has 4 tanks, each tank has a volume V = 600 $m_3$ . The total flow to the plant is Ft = 12 MGD (Millions of gallons per day)

When we use the tanks in parallel, it means that the total flow will be divided in the total number of tanks. F1 will be the flow of each tank.

Firstly, we should convert the MGD to $m_3 /day$ . In that sense, we can calculate the retention time using the tank volume in $m_3$ .

$Ft =12 \frac{MG}{day} (\frac{1*10^6 gall}{1MG} ) (\frac{3.78 L}{1 gall} ) (\frac{1 dm^3}{1L} ) (\frac{1 m^3}{10^3 dm^3} ) = 45360 \frac{m^3}{day}$

After that, we should divide the total flow by four, because we have four tanks.

$F1 = Ft/4 =(45360 \frac{m^3}{d} )/4 = 11 340 \frac{m^3}{d}$

To calculate the retention time we divide the total volume V by the flow of each tank F1.

$t1 =\frac{V1}{F1} = \frac{600 m^3}{11340 \frac{m^3}{d} } = 0.0529 day\\t1 = 0.0529 d (\frac{24 h}{1d} ) = 1.26 h$

After converting t1 to hours we found that the retention time when the four reactors are in parallel is 1.26 hours.

If the four reactors were working in series, the entire flow goes first through one tank, then the second and so on. It means the total flow will be the flow of each tank.

In that order of ideas, the flow for reactors in series will be F2, and will have the same value of F0.

F2 = F0

To calculate the retention time t2 we divide the total volume V by the flow of each tank F2.

$t2 =\frac{V1}{F2} = \frac{600 m^3}{45360 \frac{m^3}{d} } = 0.01 day\\t2 = 0.01 d (\frac{24 h}{1d} ) = 0.31 h$

After converting t2 to hours we found that the retention time when the four reactors are in series is 0.31 hours.

5 0

3 years ago

A mass of 2.20 kg of sodium phosphate is converted number of moles

Paladinen [302]

Explanation:

here's the answer to your question

3 0

3 years ago

4. For many students, the reaction flask will become warmer during oxygen generation and the reaction rate will become faster. E

vladimir2022 [97]

Answer:

See below

Explanation:

Reactions require successful collisions between elements or molecules. A rise in temperature increases the movement of molecules. The more movement, the more collisions. The more collisions, the more reactions. The collisions release energy as heat which warms the flask and so on.

8 0

3 years ago

What is an ionice equation with phases for the following chemical reaction: 2HBr(aq)+BaOH2(aq)-->2H2O(l)BaBr2(aq)?

Nata [24]

<span>Molecular reaction

2HBr(aq) Ba(OH)2 (aq) = 2H2O (l) BaBr2(aq)

Ionic equation

2H 2Br- Ba 2 2OH- --------> Ba 2 2Br - 2H2O

Net ionic equation

2H (aq) 2OH- (aq)- ---------> 2H2O (l)</span>

4 0

4 years ago

What type of air masses might make up the cold air mass in a cold front

Elena L [17]

Answer:

continental polar air masses

Explanation:

forms over Canada, move down from North Pole, bring bitterly cold and dry air to the northern United States during the winter.

4 0

4 years ago

Read 2 more answers