Please explain the concept behind why each process has that diagram. The answers to this question are: $3-$C$,4-$D$,5-$B$,6-$E$.$

For questions $3-6,$ refer to the figure below:

c$)-$

d$)$

$[3]3.$ Which of a$),$ b$),$ c$),$ d$),$ or e$)$ above is a possible T$-$s diagram of a throttling process?

$[3]4.$ Which of a$),$ b$),$ c$),$ d$),$ or e$)$ above is a possible T$-$s diagram of a constant pressure process?

$[3]5.$ Which of a$),$ b$),$ c$),$ d$),$ or e$)$ above is a possible T$-$s diagram of a constant specific volume process?

$[3]6.$ Which of a$),$ b$),$ c$),$ d$),$ or e$)$ above is a possible T$-$s diagram of a reversible, adiabatic process?