Recent content by Guil Lowtine

standard enthalpy of formation? Which one of the following shows the correct thermochemical equation for the standard enthalpy of formation of dinitrogen tetroxide? which of the following?? N2(g) + O2(g) -> N2O4(l) ?H°f = 9.16kJ 1/2N2(g) + O2(g) -> 1/2N2O4(l) ?H°f = 9.16kJ N2(g) + O2(g) ->...

Hess' Law is useful because it tells us that ?E = 0. q is a constant. ?H = ?E. work is zero. ?Hrxn is the same regardless of if the reaction is carried out in a single step or carried out in a series of steps. please and thank you :D