If'substance X is a liquid, substance Y is a gas, and substance Z is a solid, and all are at the
same temperature and pressure, then the order of increasing strength of their intermolecular
forces would be

radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.