a) The vapour pressures of carbon disulphur (CS 2 ) at the 180 ºC-240 ºC temperature range are: employing a graphical method, obtain the vaporisation enthalpy, the normal boiling temperature, and the...

a) The vapour pressures of carbon disulphur (CS₂) at the 180 ºC-240 ºC temperature range are:

employing a graphical method, obtain the vaporisation enthalpy, the normal boiling temperature, and the boiling temprature at 25 atm. Which will be the most accurate of those two boiling temperatures? Why?

b) If the pressure exerted by a person on a ice skate is 3400 atm, which will be the melting temperature at that pressure?

Data: = 1.44 kcal/mol; = 0.92 g/mL; = 1 g/mL

Results: a) ∆lurHm = 6731.4 cal/mol; Tlur0 = 48.7 ºC; Tlur (25 atm-tan) = 191.7 ºC; the one at 25 atm will be the most accurate, because it is within the p-T values used for the fitting. b) 249.6 K

Extracted text: t (°C) 180 200 220 240 р (atm) 20.8 28.3 37.8 49.6 employing a graphical method, obtain the vaporisation enthalpy, the normal boiling temperature, and the boiling temprature at 25 atm. Which will be the most accurate of those two boiling temperatures? Why? b) If the pressure exerted by a person on a ice skate is 3400 atm, which will be the melting temperature at that pressure? Data: Afus Hm= 1.44 kcal/mol; Pice=0.92 g/mL; Pwater= 1 g/mL Results: a) AfurHm = 6731.4 cal/mol; Twº = 48.7 °C; Tur (25 atm-tan) = 191.7 °C; the one at 25 atm will be the most accurate, because it is within the p-T values used for the fitting. b) 249.6 K