Question: The critical constants for a certain substance, A, are given as follows Tc = 126.2 K , pc = 35.0 atm, Vc = 0.090 dm3

The critical constants for a certain substance, A, are given as follows Tc = 126.2 K , pc = 35.0 atm, Vc = 0.090 dm3 /mol. The vapor pressure of A at 100 K is 20.0 atm, and 1.0 mol of gas liquefies when compressed to a volume of 0.120 dm3 until a volume of 0.050 dm3 is reached. Considering the gas behaves perfectly at 350 K, estimate the isotherms for A at 350 K, 126.2 K and 100k.

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