All categories

3 years ago

Which arrows represents the phase transitions in which he's energy is gained

Chemistry

2 answers:

WARRIOR [948]3 years ago

6 0

Answer: The correct option is 1, 2 and 3.

Explanation: There are 3 phases of matter.

1) Solid

2) Liquid

3) Gas

The phase transitions between these phases will require some amount of heat energy or will release some amount of heat energy.

The phase transition from solid to liquid will require heat because the bonds between the particles are to be broken. Hence, some amount of heat energy is required. This process is known as Fusion. Arrow representing this process is 1.

The phase transition from liquid to gas will require heat because the bonds between the particles are to be broken. Hence, some amount of heat energy is required. This process is known as Evaporation. Arrow representing this process is 2.

The phase transition from solid to gas will require heat because the bonds between the particles are to be broken. Hence, some amount of heat energy is required. This process is known as Sublimation. Arrow representing this process is 3.

The phase change from gas to liquid will release some heat because the bonds between the particles are to be formed. Hence, some amount of heat energy will be released. This process is called as Condensation. Arrow representing this process is 4.

The phase change from liquid to solid will release some heat because the bonds between the particles are to be formed. Hence, some amount of heat energy will be released. This process is called as Freezing. Arrow representing this process is 5.

The phase change from gas to solid will release some heat because the bonds between the particles are to be formed. Hence, some amount of heat energy will be released. This process is called as Deposition. Arrow representing this process is 6.

Hence, the arrows 1, 2 and 3 represent the phase transitions which require heat energy.

ipn [44]3 years ago

3 0

The correct answer would be the first option. The arrows 1, 2 and 3 represent the phase transitions where heat energy is gained. As heat energy is gained the kinetic energy of the molecules in a substance is increased which would cause them to change phases from solid to liquid and to gas.

You might be interested in

Use the idea of diffuseition to explain how the smell of perfume travel

pogonyaev

When perfume is sprayed in a room the particles of perfume diffuse with the particles in the air.

6 0

3 years ago

Which of the following represent a mixture?

7nadin3 [17]

The answer is B NaCI solid

6 0

3 years ago

Name the seventh inner transition metal in period 6

vladimir1956 [14]

Answer:

follow me and mark me brainliest

8 0

3 years ago

The accepted value for the percent by mass of water in a hydrate is 36.0%. In a laboratory activity, a student determined the pe

valentina_108 [34]

The original or accepted value for the percent by mass of water in a hydrate = 36%
Percen by mass of water in the hydrate determined by the student
in the laboratory = 37.8%
So the difference between the actual and the percent by mass in water determined by student = (37.8 - 36.0)%
   = 1.8%
So the percentage of error made by the student = (1.8/36) * 100 percent
   = (18/360) * 100 percent
   = ( 1/20) * 100 percent
      = 5 percent
So the student makes an error of 5%. Option "1" is the correct option.

4 0

3 years ago

The__ model assigns to fixed orbits of defined energy. To move between orbits, electrons must emit or absorb _____ radiation

AURORKA [14]

Answer:

The Bohr model assigns to fixed orbits of defined energy. To move between orbits, electrons must emit or absorb electromagnetic radiation

Explanation:

In the Bohr model of the atom, the atom itself looks like a solar system.

In fact, at the center of the atom we have the nucleus, which contains protons and neutrons.

Around the nucleus, at a much higher distance, we have the electrons, negatively charged. The electrons move around the nucleus in fixed orbits, like the planets around the Sun.

According to Bohr's model, the electrons cannot live in the space between two orbits, but they must stay in one of these orbits. Each of these orbits is associated to a certain energy level: therefore, this means that the energies of the electrons in an atom are quantized, so they cannot take all possible values, but only some precise values.

Moreover, according to the law of conservation of energy:

- When an electron jumps from a lower energy level to a higher energy level, it must absorbs energy, and this energy is absorbed in the form of electromagnetic radiation (a photon) whose energy is equal to the difference in energy between the two levels

- SImilarly, when an electron jumps from a higher energy level to a lower energy level, it releases energy, in the form of electromagnetic radiation (a photon) whose energy is equal to the difference in energy between the two levels.

4 0

3 years ago