Can Energy Be converted into mass<interchangeable> ??How??If Yes,Why?If no,Why??

Question

If the answer is yes,then would it be possible to Create a "bomb" that can suck all the energy around it when the "bomb" convert the energy around it into mass and freeze the whole place into ice?
If 1kg of atom can produce 9x10^16 joule of Energy..Then 9x10^16 joule of energy would be needed to produce 1kg,isn't it?

Answer 1

Yes. But, the how of the matter is very complicated

"REAL PHOTONS CREATE MATTER. Einstein's equation E=mc² formulates the idea that matter can be converted into light and vice versa. The vice-versa part, though, hasn't been so easy to bring about in the lab. But now physicists at SLAC have produced electron-positron pairs from the scattering of two "real" photons (as opposed to the "virtual" photons that mediate the electromagnetic scattering of charged particles). To begin, light from a terawatt laser is sent into SLAC's highly focused beam of 47-GeV electrons. Some of the laser photons are scattered backwards, and in so doing convert into high-energy gamma ray photons. Some of these, in turn, scatter from other laser photons, affording the first ever creation of matter from light-on- light scattering of real photons in a lab. (D.L. Burke et al., Physical Review Letters, 1 September 1997.)"

Quoted from:
http://www.hep.princeton.edu/~mcdonald/physnews.337.htm

See also:
http://www.photonics.com/content/spectra/1997/October/news/77675.aspx

Answer 2

The problem with this simplistic analogy is that it is impossible to force energy to produce matter. It happens at very small scales, but because of entropy, free energy or energy in the form of light or heat is much much more likely than energy being forced to be structured mass. The reverse process, however, is done. Nuclear explosions are a result of the reverse process, that is, mass converting into energy. It should be noted that not all of the uranium/plutonium mass is annihilated in a reaction, so you do not see explosions which would cripple the world ( that little 9x10^16 joules you have up there). Only a small amount of the material actually annihilates.

To understand just how serious this is, just open a book and look at the mean life of a particle such as a pion, which gives up the great majority of its mass when it decays into an electron/positron and photon.

Answer 3

To clarify the case of a nuclear explosion, the only mass that is converted to energy is the equivalent mass of the binding energy of the nucleus. No actual particles of matter are destroyed. There are the same number of electrons, neutron, protons before and after. However, if you sum the masses of the components before and after, the total mass after the reaction is less than before, because of the energy released.

Real matter can be converted to energy through matter-antimatter annihilation. If an electorn and positron interact, both disappear, and the energy released is given by E=MC^2, where M=the combined mass of the two particles.

Answer 4

E = mc^2 is an equation of equivlance. It asbolutely applies to all systems, and it is improtant in making comparisons between reference frames (contrary to what many say here). This is because observers moving with respect to one another will not agree on the mass and energy of particles - a result from special relativity.

It does not imply a conversion of mass to energy within a reference frame, but the equivalence does apply when quantum rules do allow this conversion.

A whole series of other conservation rules are obeyed when mass is created in this way.

But to give an indication of the improtance of this equivalence, all protons and neutrons are made up of quarks - three each. The rest mass (i.e. mass in a frame in which they are stationary) of these quarks is only about 5% of the rest mass of the proton. The additional mass is entirely due to the energy of the quarks being bound together by the strong nuclear force.

Answer 5

This is exactly what happens in nuclear weapons.

Actually, matter and energy change places all the time. Physicists do it a lot in their labs so grad students can have something to write about.

**** Keep in mind the m is the relativistic mass, which increases with relative speed of the particles involved.

Answer 6

I believe that is what happens when heavy elements are created by nuclear fusion in a supernova. Lighter nuclei are fused to nuclei which are heavier than the sum of the weights of their components. This occurs because there is a net input of energy in the fusion reaction.

Answer 7

absolutely not. at this time there is no known way to turn energy into mass. the term is entropy, all matter is (slowly) being converted into energy. theoretically, the only times when this was not true was at the moment of the big bang and quantum mechanics tells us matter can spontaneously appear in the vacuum of space.

Answer 8

Its not E= mc^2

Its E= (DELTA) mc^2 so you can only gain energy from a loss of mass.

delat is the greek symbol, means change in.

Answer 9

yes
if you burn anything the mass of it burns and give light which travels with speed c and energy comes out as you burn a thing in the form heat OK i think you got it.