2. Given the equation: - KNO3(s)
H2O(0)
→ KNO3(aq)
As H2O(l) is added to KNO3(s) to form KNO3(aq), the
entropy of the system
A) decreases
B) increases
C) remains the same

The mass has escaped into a gas which you can not see so the law stays true.

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf