Related questions

Question

State whether ΔS is positive, negative or zero for the following processes: (a) A piece of ice goes from -30 C to -5 C at constant pressure. (b) 2 NO(g) + O2(g) --> 2 NO2(g) at 25 C and 1 atm (c) 4 Fe(s) + 3 O2(g) --> 2 Fe2O3(s) at 25 C and 1 atm