1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andrey2020 [161]
3 years ago
6

Expansion is greatest in A solid B gases C liquid D all​

Physics
1 answer:
kifflom [539]3 years ago
8 0

Answer:  b)Gases

Explanation: Because the Particle are moving freely

You might be interested in
Can anyone solve this please.........
umka21 [38]
F
T
T
That is what i think 
8 0
3 years ago
I really need help with this
katen-ka-za [31]

<u>C</u> is the correct answer, because energy cannot be created neither destroy. The energy is changing from chemical to from electric to light, and from light to heat.  

8 0
3 years ago
How many atoms are in a sample of 1.83 moles of potassium (K) atoms?
telo118 [61]
<span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles.

 </span>1.83 moles K (6.022 x 10^23 atoms / mole ) = 1.10 x 10^24 atoms K
4 0
3 years ago
A 0.877 mol sample of N2(g) initially at 298 K and 1.00 atm is held at constant volume while enough heat is applied to raise the
MissTica

Answer : The value of q\text{ and }\Delta U is 286.2 J and 286.2 J respectively.

Explanation : Given,

Moles of sample = 0.877 mol

Change in temperature = 15.7 K

First we have to calculate the heat absorbed by the system.

Formula used :

q=n\times c_v\times \Delta T

where,

q = heat absorbed by the system = ?

n = moles of sample = 0.877 mol

\Delta T = Change in temperature = 15.7 K

c_v = heat capacity at constant volume of N_2 (diatomic molecule) = \frac{5}{2}R

R = gas constant = 8.314 J/mol.K

Now put all the given value in the above formula, we get:

q=0.877mol\times \frac{5}{2}\times 8.314J/mol.K\times 15.7K

q=286.2J

Now we have to calculate the change in internal energy of the system.

\Delta U=q+w

As we know that, work done is zero at constant volume. So,

\Delta U=q=286.2J

Therefore, the value of q\text{ and }\Delta U is 286.2 J and 286.2 J respectively.

8 0
3 years ago
Read 2 more answers
If an atom has 13 protons and is currently electrically neutral, what must happen to give the same atom a positive charge of +2e
Alex777 [14]

The atom must lose 2 electrons

Explanation:

An atom consists of three types of particles:

- Protons, in the nucleus, with positive electric charge +e

- Neutrons, in the nucleus, with no electric charge

- Electrons, orbiting around the nucleus, with negative electric charge -e

As a result, the net electric charge of an atom is given by the number of protons minus the number of electrons:

Q = #p - #e

For a neutral atom, the number of protons and electrons is the same, so the net charge is zero.

In order for an atom to have a positive charge of +2, it means that there must be 2 protons more than the number of electrons. Since atoms exchange electrons (and not protons), this means that the atom must have "lost" 2 electrons.

In this problem, we have an atom with 13 protons: this means that initially it also has 13 electrons. However, later the atom lost 2 electrons, and as a result, the final charge is +2e.

Learn more about atoms:

brainly.com/question/2757829

#LearnwithBrainly

5 0
3 years ago
Other questions:
  • On an icy road, a 1100 kg car moving at 55 km/h strikes a 480 kg truck moving in the same direction at 37 km/h . The pair is soo
    11·2 answers
  • How does energy from the sun affect the motion of molecules in a solid compared to molecules in a gas
    9·1 answer
  • The technology in solar panels allows us to convert the _______ energy from the sun to ________ energy which can be used to heat
    14·1 answer
  • Science fiction movies that include explosion sound effects for battles in space are not scientifically correct. Why is this?
    15·1 answer
  • A 8 kg eagle is flying up in the sky. You pull out your GPE gun and are able to tell that the bird has a GPE of 2,352 J. How hig
    15·1 answer
  • The bottom of the hockey stick is called a?
    7·1 answer
  • Two identical cars, each traveling at the same velocity, and having the same mass come to a stop
    12·1 answer
  • Objects in space are moving at a constant velocity in a straight line.
    7·1 answer
  • A stationary body is acted upon by a number of forces. State the two conditions which must apply for the body to remain at rest.
    12·1 answer
  • What is the mass of a bullet moving at 970 m/s if the bullet’s kinetic energy is 3.0 x 10^3 J?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!