The space shuttle orbiter utilizes the oxidation of methyl hydrazine by dinitrogen tetroxide for propulsion:
- The space shuttle orbiter utilizes the oxidation of methyl hydrazine by dinitrogen tetroxide for propulsion:
5N2O4 (g) + 4N2H3CH3 (g) ® 12H2O (g) + 9N2 (g) + 4CO2 (g) DH° = -4594 kJ From the values for the standard heats of formation given in Appendix IV at the back of your textbook, calculate the standard heat of formation of N2H3CH3 (g).
the answer is +18.2
I looked up the standard heats of formation and they are
n2o4-9.16
h2o- (-241.8)
n2-0
co2- (-393.5)
I keep getting a Diff answer