Ammonium carbamate, NH₄CO₂NH₂, decomposes as follows: NH₄CO₂NH₂(s)⇌2NH₃(g)+CO₂(g) Starting with only the solid, it is found that at 40∘ C the total gas pressure and { (:
A. NH₄CO₂NH₂(s)
B. 2NH₃(g)+CO₂(g)
C. NH₃(g)
D. CO₂(g)