Slides in this set
Change of state
Solid liquid gas
When a solid is heated its particles vibrate more.
When melting occurs the solid structure breaks down
leading to an increase in entropy.
When a liquid is heated, the energy of the particles
increases and at the boiling temperature the particles
break away from each other and there is a further
increase in entropy.…read more
Ions and molecules usually have higher
entropies in solution than they do as solids.
If a gas is produced in a reaction, it is likely that
the overall entropy will increase.
When large molecules break down into smaller
molecules, entropy increases.
This is because there are more
ways of arranging several small
molecules than one big one.…read more
CHANGE OF THE Ssys = Sproducts - Sreactants
OF THE Ssurr = -H/T Remember to multiply H by
1000 if it is in kJmol-1!!
ENTROPY Stotal = Ssys + Ssurr