Problem on decomposition reaction

Nitrogen tetroxide (melting point: -11.2°C, normal boiling point 21.15°C) decomposes into nitrogen dioxide according to the following reaction:

N₂O_4(g) ↔2NO₂(g)
The decomposition reaction is fast and the color of the gas goes from clear to brown as the extent of dissociation increases. Using only the experimental data presented below, answer the following questions.

a) Is the decomposition reaction endothermic or exothermic? Why?

b) What is the extent of dissociation at 61.8°C and 1 bar if the initial state consists of pure N₂O₄?

c) Repeat part (b) for the case where the total pressure is 0.5 bar.

d) Repeat part (b) for the case where the initial state consists of 50 mol% inerts and 50 mol% N₂O₄.

e) Determine Δh^o_rxn at 47.7°C.

f) Determine Δg^o_rxn, at 47.7°C

g) Determine Δs^o_rxn, at 47.7°C

Data:

1706_endo or exo.jpg

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