It is very hard to understand what you are saying. Can you please reword this in an alternate way? Maybe examples would help too.Karan Punjabi said:Guys I am getting confused that what is state function? People say if state changes then state function also changes. But my view is if that variable changes then only state changes and its not necessary when a state change will always lead to change of every state function.
Yeah I understood about the state functions...now having a clear view to it...thank youTazerfish said:I think I can explain state functions.
Things that are only dependent on the current state of the system are state functions.
Gravitational potential energy is a state function.It is determined by the position of the masses in your system.(On Earth the height above the ground.)
Thermal energy is a state function . Just knowing the temperature and the specific heat capacity you can figure it out.
Enthalpy is also a state function.It is dependent on the same things thermal energy depends and additionally on the volume and pressure of the system.
You can go on like this.Entropy and stuff like the other thermodynamic potentials are also a state function
The amount of frictional energy an object "loses" to the environment between two points is not only dependant on the two points.
It is not a state function because it depends on the path.
I suspect that did not help you much, but feel free to ask it again in a more specific way.
Chemical thermodynamics is the study of how energy is transferred and transformed in chemical reactions. It helps us understand the spontaneity and direction of chemical reactions, as well as the factors that affect their equilibrium.
State functions are properties of a system that are determined only by the current state of the system, regardless of how that state was achieved. Examples include temperature, pressure, and internal energy.
State functions are important in thermodynamics because they allow us to describe and understand the behavior of a system without considering the specific path that led to that state. This makes it easier to analyze and predict the behavior of chemical reactions.
Internal energy is the total amount of kinetic and potential energy in a system. Enthalpy, on the other hand, is the internal energy plus the product of pressure and volume. In other words, enthalpy takes into account the work done by the system.
The change in a state function, such as enthalpy or entropy, can tell us whether a reaction is spontaneous or not. If the change is negative, the reaction will be spontaneous under the given conditions. If the change is positive, the reaction will not be spontaneous. However, the magnitude of the change also plays a role, so a positive change in a state function could still result in a spontaneous reaction if it is large enough.