Question

please help me with question 3 and 4. thank you so much

3. Use the graph of the experimental vapor pressure to determine the normal boiling point of methyl butyl ether. Vapor Pressure mmHg TZU TITUT 0 10 20 30 40 50 60 70 80 90 100 110 120 T°C A) 19°C B) 52°CC) 60°C D) 64°C E) 70°C The molar enthalpy of vaporization of molecular compounds is A) always negative B) always positive C) negative if the boiling point is below room temperature but positive if the boiling point is above room temperature D) can be negative or positive depending on the substance.

Answer 1

o use the vaper hocmal graph of pressure boiling the experimental to determine the point of metry butyl ether o nt of metry who Û 70°c 9 The - (D) molar enthalpy of vaporization molecular compounds i can be negative or posinine depending on the substance