The drawing above is acting as a B) a screw.
PV=nRT
Here
P1/T1= P2 / T2
1 torr=133 pascal
600 *133 /215 = 750 *133 / t2
T2= 268.75 K
I'm pretty sure the answer is B) Evaporation.
It will dissolve faster as the surface area is more so more particles collide ---> faster dissolving
