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Solution


Q.

The osmotic pressure of solution of PVC in cyclohexanone at 300 K are plotted on the graph. The molar mass of PVC is ______ g mol-1 (Nearest integer).

(Given: R = 0.083 L atm K-1 mol-1)      [2023]

Ans.

(41500)

Assuming π vs C graph, then slope = RTM

=0.083×300M=6×10-4 or M=41500 g/mol