All categories

3 years ago

During which changes of state do atoms overcome the attractive forces between them?

2 answers:

8 0

Atoms overcome the attractive forces between them through vaporization and sublimation .in vaporization the atoms are from gas to liquid while in sublimation it is from solid to gas which skips liquid state.through this the attractive force of the atoms does not meet in the liquid state because sublimation does not undergo in liquid phase. hope this help

Tems11 [23]3 years ago

6 0

Answer : The states in which atoms overcome the attractive forces between them are melting, evaporation and sublimation process.

Explanation :

Solid state : It is a state in which the particles are closely packed and does not have any space between them. The intermolecular force of attraction between the particles are more.

Liquid state : It is a state in which the particles are present in random and irregular pattern. The particles are closely arranged. The intermolecular force of attraction between the particles are lower than solid.

Gaseous state : It is a state in which the particles are loosely arranged and have a lot of space between them. The intermolecular force of attraction between the particles are very low.

The order of state in which atoms overcome the attractive forces between them are:

Solid state < Liquid state < Gaseous state

Thus, there are three states in which atoms overcome the attractive forces between them. The three states are:

Melting or fusion : It is a type of process in which the phase changes from solid state to liquid state at constant temperature. That means, as we are move from solid state to liquid state the attractive forces are reduces.

Evaporation : It is a type of process in which the phase changes from liquid state to gaseous state at constant temperature. That means, as we are move from liquid state to gaseous state the attractive forces are reduces.

Sublimation : It is a type of process in which the phase changes from solid state to gaseous state without passing through the liquid state at constant temperature. That means, as we are move from solid state to gaseous state the attractive forces are reduces.

Hence, states in which atoms overcome the attractive forces between them are melting, evaporation and sublimation process.

You might be interested in

A man pushes a 35.2 kg box across a frictionless floor with a force of 128 N. What is the acceleration of the box

vodka [1.7K]

The formula for Force is F = MA, or Force is equivalent to the product of Mass and Acceleration.

F = 128N.
M = 35.2kg.

128 = 35.2A
Divide both sides by 35.2 to solve for the acceleration.
A = ~3.636

The acceleration is 3.636 m/s^2.

I hope this helps!

4 0

3 years ago

Read 2 more answers

What does it mean to say that a wave is a cyclic, or periodic, disturbance

Ivenika [448]

Wave is a disturbance or energy that propagate through medium from one point to other point

So basically it is a flowing energy that flows into the medium and hence medium particles start oscillating about their mean position to and fro.

This motion of medium particles or this to and fro motion is about their mean position and this will always be cyclic or periodic motion

This means the disturbance or energy continuously flow through the medium such that it will change the position of medium particle and this will be cyclic in order

For an example

$y = A sin(\omega t + kx + \phi)$

so here above equation of wave is a travelling wave in which displacement of medium particle from its mean position is given by "y"

Now we can see that this disturbance depends upon the sine function and it will repeat its same position after every 2 pi time interval as it is cyclic function for this value

Due to this phenomenon of repeatation of its same position we can say that it is disturbance of wave is cyclic.

3 0

3 years ago

A car moving at 30 m/s slows uniformly to a speed of 10 m/s in a time of 5 s. Determine 1. The acceleration of the car. 2. The d

ValentinkaMS [17]

Answer:

Explanation:

Initial velocity , u = 30 m/s

final velocity , v = 10 m/s

time , t = 5 seconds

1. Acceleration = v - u / t

= 10 - 30 / 5

= -20 / 5

= <u><em>- 4 m/s</em></u>

8 0

4 years ago

A motorcycle accelerated from 10 metre per second to 30 metre per second in 6 seconds. How far did it travel in this time ?

Ber [7]

U=10 m/s
v=30 m/s
t=6 sec

therefore, a=(v-u)/t
=(30-10)/6
=(10/3) ms^-2

now, displacement=ut+0.5*a*t^2
=60+ 0.5*(10/3)*36
=120 m
And you can solve it in another way:

v^2=u^2+2as
or, s=(v^2-u^2)/2a
=(900-100)/6.6666666.......
=120 m

7 0

4 years ago

What is the frequency of a sound wave with a wavelength of 0.04 meter in air? What type of wave is

Viktor [21]

8500 Hz and Longitudinal

Speed = frequency x wavelength

Speed of sound at 20 degrees Celsius is approximately 340 m/s

4 0

3 years ago

Read 2 more answers