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Exceptions of law of conservation of mass Describe it and its example.

Exceptions of law of conservation of mass Describe it and its example. 

Grade:11

1 Answers

Arun
25750 Points
5 years ago
energy is always conserved in theory (at least in the ones im familiar with), and mass contributes to the (total) energy of a particle. to my knowledge this agrees with experiment in nuclear reactions. if evergy every appeared to not be conserved, then people would look for the missing energy (dark matter?). 

mass is not conserved since it may be converted to other forms of energy. there is no conservation law for mass, however it stays reasonably constant in a lot of situations. 

there ARE certain quantities which are conserved in certain interactions (weak, strong, electric) which are not conserved in others. this may be the exceptions you are thinking of. energy is not one of these though. for instance, isospin is conserved in strong interactions but not weak interactions.

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