Question

26 marks] 4.1 Consider a typical diagram for a pure ubstance shown below Pressure (a) What is the name of the above diagram? (b) Give the definition ia woeds, od the answer written dowa in pat (a). (c) Re-draw the ahove diagram and label all the appeopriate general features on the diagram Represent the features that are points with points on the diagram (d) Give beief definitions andoe explanations for the fetures labeled in pazt (c) (e) In phase equilibria, what do P and T, represent? (f) On the same diagram drawn under part (c), clearly indicate P and T () For the following statement, write down the missing wordsk , v,and T, are known the th) Knowing Z Pe and Te of a substance, how can V of the same sebstance be determined? () Hint: Simply make Ve the subject of the appropriate formala Page 14 of 1 .2 Consider a system consisting of liquid water saturated with the dissolved constituents of air in equilibrium with air saturated with gaseous water For simplicity, let "air be a gaseous mixture of molecular nitrogen and molecular oxygen (a) Wrile down the chemical formulas) of dhe componentls) in the above sysiem. b) Identify the phase(s) in the above system. (e) Using the Gibbs phase rule, delermine the number of degrees of freedom for the above

Consider a typical diagram for a pure substance shown below

Answer 1

ザ, Po solid じ4) lkins uibbs phase guule * F-degru, aftreademcニcomponents phase CuHy00C.zft, ubう.ius enld び) Pm te

F- 3-P TS e) ?e lutt.eal,predbluu う phases