Nitrogen, N2, has a normal boiling point of -196oC and a normal melting point of -210oC.  Which of the following expressions is true about the process N2(g) ⟶ N2(l) at 25oC? Group of answer choices ΔS(process) > 0 Both of the two inequalities listed Neither of the two inequalities listed ΔS(universe) > 0

Phosphorus exists in multiple solid phases, including two known as red phosphorus and white phosphorus. (a) Based on their respective heats of formation, which form of phosphorus is defined as the standard state? (b) Now consider the phase transition between white and red phosphorous: P4(s, white4 P(s, red). Use data from Appendix E to determine which form of phosphorous is actually more stable at 25C. (Your result should reveal that phosphorus is an exception to the usual convention for defining the standard state.) (c) Is the same form of the solid more stable at all temperatures? If not, what temperatures are needed to make the other form more stable?

The cooling effect of alcohol on the skin is due to its evaporation. Calculate the heat of vaporization of ethanol (ethyl alcohol), C2H5OH. C2H5OH(l)C2H5OH(g);H=? The standard enthalpy of formation of C2H5OH(l) is 277.7 kJ/mol and that of C2H5OH(g) is 235.1 kJ/mol.

For a liquid, which would you expect to be larger, Sfusion or Sevaporation? Why?