Question

Is there any change in mass when a
substance changes its state? Explain
with example.
SCERT Class 9 Telangana, Physical Science Chapter 1 Matter Around us

Answer 1

Well,it is a known fact that the different states of matter are because of the different intermolecular force of attraction between the molecules(specifically the energy of the molecules/atoms).Limiting our senses to three common states(solid,liquids and gases),we know that gas molecules are having the least intermolecular force of attraction and highest kinetic energy followed by liquids and then solids. So ,as you see mass of the object has nothing to do with its state but it is just that to change the state of an object having a greater mass,we need to extract or provide an energy in greater amount but no change in mass is involved during change of state.

Hope it helps you !!!!!!!

Answer 2

$\huge{\underline{\underline{explanation :- }}$

There is no change is mass when a substance changes its state

${\underline{examples}}$

If we change 100 GMs if wayer into ice ,the mass of ice will remain the same i,e100s

This shows the there is no change in the mass even if a substance changes in state