19.) The upper critical solution temperature is (a.) T (b.) Ta (c.) Ta (d.) Ts 2

Question

19.) The upper critical solution temperature is (a.) T (b.) Ta (c.) Ta (d.) Ts 20.)A mixture of A+B with total mole fraction of x1 0.25 at temperature Ti contains two liquids: and with mole fractions of xa (a.) xe(a)x (B) 0.25 (b) xe(a)10.2 and xa()-0.6 (c.) x(a)-0.37 and x(B)-0.5 (d.) Xe(a)-0.15 and xa(B)-0.8 0.6 Mole fraction of BxA 21.)For the two phases described above the ratio of abundance (moles) of the two phases is close to 22.)If the mixture described above is heated to T (a.) A single liquid phase (b.) A single vapor phae (c.) A single solid phase (d.) One liquid and one vapor phase it becomes

Explanation / Answer

Ans 19 B) T3

Upper critical temperature is the temperature of the system above which all the components of solution are miscible in all the given proportions.

Here the upper critical temperature as depicted in the picture is T3.

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