2014 Professional Knowledge Morning 52
Thread Content
As the title suggests, I used to only be aware of state functions; what do state parameters mean?
This post was last edited by wine2009 on 2015-6-30 14:10. If only A is known, select free energy as an additional option for multiple selection. Concentration and equilibrium constants seem to have nothing to do with thermodynamics. Also, if the professional exam also consists of multiple-choice questions, is there points for selecting fewer options, while there are no points for selecting too many or incorrect options?
I still think only A is correct. As I understand it, thermodynamic functions should represent macroscopic thermodynamic properties, such as enthalpy, entropy, and internal energy; free energy also falls into this category. Regarding thermodynamic parameters, these should refer to the reference variables in a function; for example, temperature is a parameter that indicates whether the internal energy is changing. It’s a bit hard to explain clearly; it seems vague, or maybe I’m overthinking it. Here, the thermodynamic parameters and thermodynamic functions are essentially the same thing: Q
CD; this question tests the extensive and intensive properties of a system! For a system affected by temperature, concentration, and pressure, thermodynamics determines a certain state!!! The equilibrium constant varies with temperature and takes different values; the same is true for the Gibbs function. Temperature and concentration do not define a state; they are intensive properties of the system!
Fewer correct answers earn no points; it must be completely correct.
Choose A; none of the others. This is a single-choice question
Let’s be clear right from the start: the Chemical Engineering qualification exam is different from the First-Class Constructor exam; no points are given for selecting fewer options. Indeed, this trick doesn’t work here...
:Q Well, then I’ll have to read the book again; it’s impossible to work with many concepts that are only half-understood!
This is not a multiple-choice question; the options listed online are P, V, T, U, H, S, G, density. Personally, I think temperature and free energy should be the correct answers, but I’m not sure about the other options
Let’s discuss this question; I’ll bring it up.
In that case, is the only option for this question A?