How do you define a state in a function?

The property which depends on the state of a system and independent of a path followed to attain it, is called a state function. e.g. Pressure and temperature are state functions.

What is state variable and state function in thermodynamics?

(i) State variables : The measurable properties required to describe the state of the system are called state variables. (ii) State functions: A state function is a property of the system whose value depends on only upon the state of the system and is independent of the path or manner by which the state is reached.

What is state function in thermodynamics class 11?

The thermodynamic properties whose values depend only upon the initial and final states of the system are known as state functions. A state function is simply one that depends only on the start and endpoint, and not the path. Example; internal energy (U), enthalpy (H), entropy (S) etc.

What is state function with example?

The thermodynamic state of a system refers to the temperature, pressure and quantity of substance present. State functions only depend on these parameters and not on how they were reached. Examples of state functions include density, internal energy, enthalpy, entropy. Two examples of path functions are heat and work.

What is state function explain with example?

A state function describes the equilibrium state of a system. For example energy, enthalpy, internal and entropy are state quantities because they describe quantitatively an equilibrium state of a thermodynamic system, irrespective of how the system arrived in that state.

What is state variable or state function?

In thermodynamics, a state variable is an independent variable of a state function like internal energy, enthalpy, and entropy. Examples include temperature, pressure, and volume. Heat and work are not state functions, but process functions.

Which of the following is a state function?

Internal energy, enthalpy, entropy, and density are some examples of the state function.

What is state function and explain that enthalpy is a state function?

Enthalpy is a state function because it is defined in terms of state functions. U, P, and V are all state functions. Their values depend only on the state of the system and not on the paths taken to reach their values. A linear combination of state functions is also a state function. Enthalpy is defined as H = U + PV.

What is a state function in physics?

A state function is a property describes a particular state, without depending on the path taken to reach this state. In contrast, functions whose value depends on the path taken to get between two states are called path functions.

What is an example of a state function?

Examples of state functions include density, internal energy, enthalpy, entropy. Path functions depend on the route taken between two states. Two examples of path functions are heat and work.

What is a state variable in thermodynamics?

What is not a state function?

Heat and work are not state functions. Work can’t be a state function because it is proportional to the distance an object is moved, which depends on the path used to go from the initial to the final state.