111. Solving a chemistry problem

111. Solving a chemistry problem

The transformation of the orthorhombic form of NH4NO3 into the rhombohedral one at 32.2°C is accompanied by an absorption of 21.2 kJ/kg. In this case, the density decreases from 1.725 to 1.66 g/cm3. Calculate the derivative dT/dP (in K/Pa) for this conversion.

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