6. Identify the following processes as spontaneous (S) or nonspontaneous (N). A. _____ The melting of ice cubes at
100 C and 1 atm pressure. B. _____ Separating a mixture of N2 and O2 into two separate samples, one that is pure N2 and one that is pure O2. C. _____ Alignment of iron filings in a magnetic field. D. _____ The reaction of sodium metal and chlorine gas to form sodium chloride. E. _____ The dissolution of HCl(g) in water to form concentrated hydrochloric acid.