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
