When I try to run the example, in the line:
df = pd.DataFrame(phase_diagram.to_dict())
df.head()
I get an error message:
PanicException Traceback (most recent call last)
Cell In[6], line 1
----> 1 df = pd.DataFrame(phase_diagram.to_dict())
2 df.head()

PanicException: No ideal gas model initialized!