Tag: diffusion in different states of matter

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Multiple choice chemistry matter in our surroundings diffusion in different states of matter properties of solids, liquid, and gas particle theory of matter

The more light the object absorbs, the:

  1. less heat absorbed

  2. more heat absorbed

  3. no heat absorbed

  4. maximum heat released
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The more light the object absorbs, the more heat absorbed since light is energy. If you consider it a color, black absorbs the most heat. A black object absorbs all wavelengths of light and reflects none. Objects that are white, on the other hand, reflect all wavelengths of light and therefore absorb the least heat.

Multiple choice chemistry matter in our surroundings diffusion in different states of matter properties of solids, liquid, and gas particle theory of matter

Which color absorbs the most heat?

  1. White

  2. Black

  3. Pink

  4. Orange
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The more light the object absorbs, the more heat absorbed since light is energy. If you consider it a color, black absorbs the most heat. A black object absorbs all wavelengths of light and reflects none. Objects that are white, on the other hand, reflect all wavelengths of light and therefore absorb the least heat.

Multiple choice chemistry matter in our surroundings diffusion in different states of matter properties of solids, liquid, and gas particle theory of matter

Heat energy is transferred from hot places to cooler places by:

  1. radiation

  2. conduction

  3. convection

  4. all of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection. Conduction is the transfer of energy through matter from particle to particle. 

Multiple choice chemistry matter in our surroundings diffusion in different states of matter properties of solids, liquid, and gas particle theory of matter

The process in which gas transform into solid is called :

  1. sublimation

  2. condensation

  3. evaporation

  4. deposition

  5. melting
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sublimation- It is the transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase. 

Condensation- It is the change of the physical state of matter from gas phase into liquid phase.

Evaporation is a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance.

Deposition is a thermodynamic process, a phase transition in which gas transforms into solid.

Melting (also known as fusion) is a physical process that results in the phase transition of a substance from a solid to a liquid.

Multiple choice chemistry matter in our surroundings diffusion in different states of matter properties of solids, liquid, and gas particle theory of matter

Combustion reaction is usually .................. whereas decomposition reaction is ................ usually.

  1. endothermic, exothermic

  2. exothermic, endothermic

  3. endothermic, conduction

  4. none of above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Exothermic reactions release heat and light into their surroundings. For example, combustion reactions are usually exothermic. Endothermic reactions, on the other hand, absorb heat and/or light from their surroundings. For example, decomposition reactions are usually endothermic.

Multiple choice chemistry matter in our surroundings diffusion in different states of matter properties of solids, liquid, and gas particle theory of matter

Which of the following statement is true?

  1. The latent heat of vaporization of water is the energy which is used to change the state of water (liquid) to vapor (gas)

  2. The latent heat of fusion of water is the energy which is used to change the state of water (liquid) to vapor (gas)

  3. When an object takes up latent heat the temperature increases drastically

  4. None of above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When liquid changes into gas because of rise in temperature, the heat required changing the state without rising in temperature is called the Latent Heat of vaporization. The latent heat of vaporization of water is the energy which is used to change the state of water (liquid) to vapor (gas).

Multiple choice chemistry matter in our surroundings diffusion in different states of matter properties of solids, liquid, and gas particle theory of matter

Which of these is a property of a liquid?

  1. Has a particular shape

  2. Has a particular volume

  3. Doesn't have a fixed shape

  4. Doesn't have a fixed volume
Reveal answer Fill a bubble to check yourself
B,C Correct answer
Explanation

A liquid has a particular volume but it doesn't have a definite shape. Liquid takes the shape of the container in which it is kept.
The inter-molecular forces in case of a liquid are not as strong as in solids and hence a liquid is not held together tightly. Thus, the liquid takes up the shape of the container in which it is kept.


Hence, the correct options are $B$ and $C$

Multiple choice chemistry matter in our surroundings diffusion in different states of matter properties of solids, liquid, and gas particle theory of matter

Which of the following sentences are true?

  1. Solid particles have very low kinetic energy

  2. Gas particles have very high kinetic energy

  3. Kinetic energy of liquid is intermediate between solid and gases

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In a solid, the particles are held together by strong intermolecular forces between them and hence there is very little scope of movement for the particles in solid. So, kinetic energy of solid is very low.


In a gas, the particles are held together by very weak intermolecular forces between them and hence there is a very high scope of movement for the particles in gas. So, kinetic energy of gas is very high.

In a liquid, the particles are held together by intermolecular forces which are not as strong as in solid, neither as weak as in gases and hence there is a scope of movement for the particles in liquid which is not as low as solid, neither as high as gas. 

So, kinetic energy of liquid is intermediate between solid and gases.

Hence the correct option is D.