Study the following phase diagram of Substance X. 2.8 solid liqui gas 200 400 60
ID: 718349 • Letter: S
Question
Study the following phase diagram of Substance X. 2.8 solid liqui gas 200 400 600 temperature (K) Use this diagram to answer the following questions. Suppose a small sample of pure X is held at 254. °C and 1.4 atm. What will be the state of the sample? (choose one) Suppose the temperature is heild constant at 254. "C buthepessurehoose onel a is decreased by 0.9 atm. What will happen to the sample? (choose one) Suppose, on the other hand, the pressure is held constant at 1.4 atm but the temperature is decreased by 200. °C. What will happen to the (chooseone) sample?Explanation / Answer
as per the graph:
a) point falles on solid/liquid boundary line, substance is in transition phase to solid/liquid.
b) substance will fall into gas phase state as per the revised co-ordinates. (new pressure is 1.4-0.9 = 0.5 atm)
c) substance will reach solid state as its co-ordinates will fall into this regime ( new temperature is 254-200 =54 DegC)