Physics, asked by ashish30, 1 year ago

when sugar is devolved in water is there any increase of volume

Answers

Answered by ItzzzzzzzzzMe
3
No,there is no increase in volume as the particles of sugar got fixed in the spaces  b/w the particles of water
Answered by kvnmurty
0
let us say that sugar being added weighs  Ws  gms and occupies Vs ml.
let us say that water being used as solvent has  Ww  gms and occupies Vw ml.

then before mixing them together, the total volume = Vs + Vw ml
After mixing them together, the total volume is expected to be the same....

But in a solvent like Water, there are some intermolecular forces and some small gaps between molecules.   There is hydrogen bonding between molecules too..  Sugar molecules are bigger than water molecules..   So they cannot entirely get in between water molecules and hide..

Still, some of the space between water molecules gets occupied by some sugar molecules.  Sugar molecules do not become ionic.  There is no ionic bonding..  Still  the total volume is less than Vw + Vs.   But it is more than  Vw = original volume of water.

If you put 100 gm of sugar in 1 liter of water, you can observe that  water level increases after sugar totally dissolves...  same is the case when u dissolve sugar in milk, coffee etc. in a tumbler / cup..

So there is a decrease on the total volume (of sugar+water).. but final volume is more than that of water taken initially.

Similar questions