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What types of changes observe the law of conservation of mass?
All changes, other than some nuclear reactions, must obey the Law of Conservation of Mass. Chemical reactions, physical changes, heating, cooling, and phase changes must obey the Law of Conservation of Mass.
How mass can be converted into energy. give examples?
Mass can not be converted into energy. This is a common misconception. The example usually given is nuclear reactions. Note that this is no different from a chemical reaction, except that the energies involved (as well as the mass deficit, see below) are much greater in a nuclear reaction.Assume that hydrogen is fused into helium, in the Sun. Some would say that "mass is converted into energy". This is not true. The mass deficit (see: "mass deficit" article in Wikipedia for more details) means that the helium has less mass than the hydrogen. However, any energy leaving the place of the reaction - for example, light leaving the Sun - also has mass! If the energy stays there, say as heat, it contributes to the total mass! Thus, total mass is conserved.As to the energy, the light that leave the Sun has a certain energy. This energy is available before the reaction, as nuclear energy; a type of potential energy. Thus, total energy is also conserved.Since both mass and energy are conserved, there is no mass-to-energy conversion. The same happens for other nuclear reactions, or any reaction for that matter. Both mass and energy are always conserved.
What is meant by supercritical and how does it relate to making a nuclear bomb?
A subcritical mass cannot sustain a nuclear chain reaction, it dies exponentiallyA critical mass can sustain a nuclear chain reaction, but it remains constant neither increasing nor decreasingA supercritical mass not only sustains a nuclear chain reaction but it increases exponentially until the mass explodesA nuclear fission bomb must become supercritical at some time in order to explode.
Where does nuclear energy exist in space?
Nuclear energy exists in space in the stars, such as our sun. Some of the satellites and probes we have launched also contain small nuclear power plants to generate their operating power. The existence of sites in Gabon, where critical mass was achieved naturally and natural fission reactions happened, in the distant past (2 billion years back, perhaps) indicate that fission reaction probably happen elsewhere in the universe. It is thought, however, that these are probably very uncommon.
What fuel is used in nuclear power plants?
A nuclear reactor is a device to initiate, control, and sustain a nuclear chain reaction. Nuclear power is energy produced from controlled nuclear reactions. When it comes to just standard fuel across the table it would have to be: Plutonium, Uranium, and Thorium.
A mass of gas in space made hot by nuclear reactions?
A 'proplid', or a proto-stellar object, often called a proto-star, and some believe (as I do) that 'Herbig-Haro Objects', are newly formed stars. At any rate, a star is a mass of gas in space made hot by nuclear reactions.
Why would an experiment not demonstrate the law of conservation of mass?
The only experiments that do not maintain mass are some nuclear experiments whereby mass becomes energy. All chemical reactions must maintain the conervation of mass.
Why is the law of conservation of mass so important in chemistr y?
Some would argue that more than 90 percent of chemistry is based on this law, but that is up for debate. The reason that most chemistry depends on the law of conservation of mass is that mass is conserved in all reactions expect nuclear reactions. Thus, the 90 percent is traditional reactions and the 10 percent is nuclear reactions in this saying.
Why are the products of nuclear fusion slightly less massive than the reactions?
The products of nuclear fusion are slightly less massive than the mass of the reactants because some of the mass of the reactants is converted into nuclear binding energy to hold the fusion product together.
What is a toxic inert gas that is a product of some nuclear reactions?
Radon
What types of changes observe the law of conservation of mass?
All changes, other than some nuclear reactions, must obey the Law of Conservation of Mass. Chemical reactions, physical changes, heating, cooling, and phase changes must obey the Law of Conservation of Mass.
Can lead be made synthetically?
Only some radioactive isotopes, by nuclear reactions.
What are some advantages of a nuclear fission reactor?
1. releases large amounts of energy from small amounts of mass 2. very efficient 3. convert nuclear energy into thermal energy 4. the fuel lasts a long time
What are some advantages of nuclear fission reactors?
1. releases large amounts of energy from small amounts of mass 2. very efficient 3. convert nuclear energy into thermal energy 4. the fuel lasts a long time
How do some nuclei change?
Atomic nuclei are changed by nuclear reactions or radioactive disintegration.
What process provides the suns energy?
it s a nuclear process in which smaller nuclei combine to form huge nucleus. in this process some amount of mass convert into energy in the form of light and light
What is a toxic inert gas that has not been found in nature and is a product of some nuclear reactions?
Rhenium :D
