When thermal energy is added or removed, the state of matter changes to another eg. solid becomes liquid and liquid becomes gas.
The law of conservation of matter states that matter is neither created nor destroyed. An example of this is a simple combustion reaction of methane. CH4 + 2O2 --> CO2 + 2H2O. There is 1 carbon, four oxygen's and four hydrogens on each side, thus showing conservation of matter.
No, it is a Physical Change. Physical Changes are concerned with energy and states of matter. A physical change does not produce a new substance. Changes in state or phase (condensation, melting, freezing, vaporization, sublimation) are physical changes. Other examples of physical changes include crushing a can, melting ice, and breaking a bottle. Chemical changes take place on the molecular level. A Chemical Change produces a new substance. Some examples of chemical changes include combustion (burning) and rusting of a metal.
i think that it is a law The first law of thermodynamics. Meaning, "...that energy can not be created or destroyed, it can only be changed from one form to another or transferred from one body to another, but the total amount of energy remains constant (the same)."
These changes of state are: solid to liquid, liquid to gas, gas to liquid, liquid to solid, solid to gas, gas to solid. The majority of substances have these state of matter changes.
We know that solid, liquid, gas and plasma are the "big four" states of matter. The differences between them lie mainly in the energy of the material being looked at. If we consider water, for example, it is cold when it is the solid we call ice. Warm it up and it melts to become the liquid with which we are all familiar. Warm it even more and it turns into the gas we call water vapor or steam. By superheating it, we can even supply so much energy to it that one or more electrons will leave the atoms in the molecule. This creates a plasma. The other differences between the states of matter involve their shape. Solids are just that -- solid, and they maintain their shape. Liquids take the shape of their container because they are fluids. Gases are fluids as well, and will "escape" if not completely confined in some way. This is in contrast with a glass of liquid water, which stays in the glass even though there is no lid on it. The changes between the states of matter are physical changes (as opposed to chemical ones), and they are energy dependent. Think this through and it will make sense and lock in.
Energy is related to random and nonrandom states of matter in that all matter and energy tend toward a random state. Nonrandom energy can be directed to keep matter into a desired state, but will ultimately fail.
Physically it changes states of matter so it is physical.
Matter can be converted into energy as Albert Einstein's equation states : E (Energy) = M (Mass) times (C (The speed of light) squared)
Thermodynamics is the branch of science that deals with energy and its transformations, including changes in states of matter. It is used in various technologies such as power generation, refrigeration, and heat engines to optimize the efficiency and performance of energy systems.
Changes in the states of matter occur through processes like melting, freezing, condensation, vaporization, and sublimation. These changes involve the rearrangement of particles at the molecular level due to changes in temperature or pressure. During these transitions, energy is either absorbed or released.
When matter changes its state, its physical properties such as density, shape, and volume also change. This change in state usually involves the absorption or release of energy. The three common states of matter are solid, liquid, and gas, and transitions between these states involve changes in the arrangement and movement of particles.
Temperature and energy play a significant role in changing the state of matter. By adding or removing energy, such as heating or cooling, particles within a substance can gain or lose enough kinetic energy to transition between states, such as melting or freezing. The phase changes are directly influenced by the amount of energy present in the system.
The four states of matter - solid, liquid, gas, and plasma - are related by the energy and movement of their particles. Solids have particles tightly packed and vibrating in place, liquids have particles that move around but are still relatively close together, gases have particles that move freely and are far apart, and plasmas have particles that are highly energized and ionized. Transition between these states can occur by adding or removing energy from the system.
The two states of matter that involve endothermic changes are solid to liquid and liquid to gas. In these processes, energy is absorbed from the surroundings to break the intermolecular forces holding the particles together, resulting in an increase in temperature.
No. Rather released. As during the physical changes in the states of matter, there is breaking of bonds involved. Whenever bonds are broken, the atoms of that matter come closer and energy they give out is more as compared to energy taken while breaking bonds. Hence, Physical changes at the level of states of Matter are always Exothermic i.e. RELEASING HEAT.
This could be a long answer but simply, the more heat, the more energy the atoms/molecules have (causing more powerful vibrations in the atoms), making it easier to break the bonds between the molecules/atoms. this will change the state of the compound/element in question :)
Energy must be added or taken away.