Immiscible and mutually insoluble liquids are poured into an open cylindrical vessel in the form of three thin horizontal layers. The vessel with liquids is heated slowly and uniformly throughout the volume. At what temperature will the boiling process begin in the vessel? The outside air pressure is normal atmospheric. The dependence of saturated vapor pressure on temperature for each liquid can be represented as Pnp=a(T -Tmel)2, where Tmelt is the melting temperature and a constant value. For liquids poured into a vessel, the melting and boiling temperatures are respectively equal to: Tmelt1=280 K. Tmelt1=380K, Tmelt2=300 K, Tmelt2=380K, Tmelt3=300K, Tbl3=400 K. Saturated steam can be considered an ideal gas. Patm=105 Pa.
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