Which of the following statements are false?

For every change in an isolated system $\mathrm{\Delta T}=0$

For every change in an isolated system $\mathrm{W}=0$

For every change in an isolated system that has no macroscopic change in kinetic or potential energy, $\mathrm{\Delta U}=0$

If a closed system undergoes a reversible change for which $∆\mathrm{V}=0$ , then the $\mathrm{P}.\mathrm{V}$ work involved in this process must be zero