Determine the enthalpy change of reaction, AH, in kJ, when 1.00 mol of gaseous hydrazine decomposes to
its elements. Use bond enthalpy values in section 11
of the data booklet.
N2H4 (g) → N2 (g) + H2 (g)

What would be the original temperature of a gas that has a volume of 2.0 l and a pressure of 2.0 atm and an unknown temperature that the volume increased to 3.5 l in its pressure decreased to 1.0 atm if the final temperature is measured to be 11°c