Question

We know that sound energy cannot travel in space because there is no air particles present in air . for instance if an explosion occur in space and sound energy is produced and they don't travel due to above reason . sound is a wave and what will the sound wave do in vacuum if they produced in space?

Answer 1

Wow that's really deep to think of ! However it has a fairly simple answer.
We need to understand how sound becomes a wave. Wave is nothing but a vehicle for the propogation of energy from one point to another through the particles of the medium without any actual bulk movement of the particles.
So, because there's no particles in space, that is vacuum, there's no crashing of molecules into one another, so that there becomes a sound wave that propogates sound energy.
So, whatever explosion takes place, only do not violate the conservation of energy, I'll have to say that all the energy of the explosion will either be converted into heat energy or light energy, no sound is produced.