All categories

3 years ago

Which of the answer choices correctly summarizes the kinetic theory of matter?

Chemistry

1 answer:

harkovskaia [24]3 years ago

4 0

Option D

Particles of matter continuously move or vibrate within the empty spaces that separate them from one another summarizes the kinetic theory of matter

Explanation:

The kinetic theory of matter affirms that every matter has numerous, extremely tiny particles that are uniformly moving or in a constant phase of the movement. The extent to which the particles go is circumscribed by the quantity of energy they have and their relevance to other particles.

There are spaces within particles of matter. The mediocre quantity of empty space within molecules grows progressively kinder as a unit of matter proceeds from the solid to the liquid and gas forms.

You might be interested in

Many double-displacement reactions are enzyme-catalyzed via the "ping pong" mechanism, so called because the reactants appear to

zhenek [66]

Answer:

D. It will decrease by a factor of 4

Explanation:

According to the question , the equation follows :

$A+B\rightarrow C+D$

Rate law : This states the rate of reaction is directly proportional to concentration of reactants with each reactant raised to some power which may or may not be equal to the stoichiometeric coefficient.

$Rate\ \alpha [A]^{a}[B]^{b}$

$r=[A]^{a}[B]^{b}$ .................(1)

STEP": First, find out the power "a" and "b"

a+b = 3 (because it is given that the reaction follow 3rd order-kinetics)

According to question, doubling the concentration of the first reactant causes the rate to increase by a factor of 2 means,

r' = 2r if [A'] = 2[A]

Here [B] is uneffected means [B']=[B]

hence new rate =

$r'=[A']^{a}[B']^{b}$

Put the value of [A'] , [B'] and r' in the above equation:

$2r=[2A]^{a}[B]^{b}$ ...........(2)

Divide equation (1) by (2) we , get

$\frac{2r}{r}=\frac{[2A]^{2}[B]^{b}}{[A]^{a}[B]^{b}}$

$2= 2(\frac{A}{A})^{a}\times (\frac{B}{B})^{b}$

Here A and A cancel each other

B and B cancel each other

We get,

$2= 2^{a}\times 1^{b}$

1^b = 1 ( power of 1 = 1)

$2= 2^{a}$

This is possible only when a = 1

We know that : a + b = 3

1 + b = 3

b =3 -1 = 2

b = 2

Hence the rate law becomes :

$r=[A]^{a}[B]^{b}$

$r=[A]^{1}[B]^{2}$ .............(3)

Look in the question now, it is asked to calculate the concentration of [B],if cut in half

Hence

[B']=1/2[B]

Insert the value of [B'] in equation (3)

$r'=[A]^{1}[B']^{2}$

$r'=[A]^{1}(\frac{1}{2}[B])^{2}$

$r'=\frac{1}{4}[A]^{1}[B]^{2}$ ............(a)

But

$r=[A]^{a}[B]^{b}$ ..............(b)

Compare equation (a) and (b) , we get

new rate r' =

r' = 1/4 r

7 0

3 years ago

A solution with a pH of 6.0 is

Romashka-Z-Leto [24]

A solution with a pH of 6 is acidic. a solution is considered acidic when the pH<7 while a solution is considered basic when the pH>7 (a neutral solution has a pH=7).

I hope this helps. Let me know if anything is unclear.

7 0

4 years ago

Read 2 more answers

The type of research in which one variable is changed to see its effect is:

Sauron [17]

An experiment because you need to change variables to get different outcomes and that is in an experiment

5 0

2 years ago

What type of reaction is carbon dioxide gas combining with water with water?

omeli [17]

Explanation:

Carbon dioxide dissolves in water and slowly reacts with water to produce carbonic acid. The cloudy white solution observed when CO2 is bubbled into limewater results from a reaction between Ca(OH)2 and either CO2 or H2CO3 to form an insoluble calcium carbonate precipitate.

5 0

3 years ago

Plz help me with this any answer will be good

Kazeer [188]

Gemini VII was the first successful docking

7 0

4 years ago

Read 2 more answers