Why temparature is only dependent on internal energy of something, say an ideal gas.
Which other dependency would you expect?
What is "porv"? Pressure or volume? It can depend on those, depending on the setup.
I think he means pressure or volume. Like mfb said, it can depend on these variables, depending on the system. Usually, for a gas, any two variables out of (T, p, V) are considered as the independent variables, and other quantities, such as internal energy, or compressibility, etc., are expressed in terms of these independent variables. The internal energy depends only on temperature, for an ideal gas. This is not true for a real gas.
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