Styles Imagine an apparatus consisting a transparent cylinder fitted with a move
ID: 696509 • Letter: S
Question
Styles Imagine an apparatus consisting a transparent cylinder fitted with a moveable perfectly-sealing piston. The cylinder is immersed in a thermostatted environment. This would, effectively, comprise a receptacle for a pure material, wherein the temperature (T) and pressure (p) might be adjusted independently (within certain bounds). The pure material's conventional phase diagram is shown below. id) consider the change from b to c (assume c is horizontally level with b) As in (c) above, describe briefly your (1) Procedure: how you would achieve it, and (u) Observation; what would be observed during the change, both visually and in terms of heat exchange.Explanation / Answer
Point b - from point a, pressure is increased at the constant temperature and it lies on the only liquid phase region
Point c - At the constant pressure, the temperature is reduced and liquid phase converted to solid phase. Only solid phase is present.
On lowering the temperature, solid material has been achieved
The pressure is constant and the temperature is reduced
While lowering the temperature, heat is release from the material as it is converted into liquid to solid phase