Is polytropic process for ideal gas?

Is polytropic process for ideal gas?

The specific heats will be discussed later. Notice that the results we obtained for an ideal gas undergoing a polytropic process when n = 1, is identical to that for an ideal gas undergoing the isothermal process….The Polytropic Process:

Process Exponent n
Isothermal & ideal gas 1
Adiabatic & ideal gas k = CP/CV

Are adiabatic processes polytropic?

Adiabatic and polytropic process are two important thermodynamic processes. The key difference between adiabatic and polytropic processes is that in adiabatic processes no heat transfer occurs whereas in polytropic processes heat transfer occurs.

What is an ideal polytropic gas?

A polytropic process for an ideal gas is represented by the equation PVn constant. If gamma is the ratio of specific heat CP/CV. Then the value of n for which molar heat capacity of the process is negative is given as. γ>n>1. C.

What defines a polytropic process?

A polytropic process is a thermodynamic process that obeys the relation: where p is the pressure, V is volume, n is the polytropic index, and C is a constant. The polytropic process equation can describe multiple expansion and compression processes which include heat transfer.

What is difference between isentropic and polytropic process?

Isentropic process is one in which the entropy remains constant throughout. Polytropic process is one which obeys the law given below throughout the process.

How is the polytropic process of an ideal gas described?

Polytropic Process of an Ideal Gas. • The relationship between the pressure and volume during compression or expansion of an ideal gas can be described analytically. One form of this relationship is given by the equation pVn = constant.

How is the polytropic coefficient related to the ratio of energy transfers?

Equivalence between the polytropic coefficient and the ratio of energy transfers. For an ideal gas in a closed system undergoing a slow process with negligible changes in kinetic and potential energy the process is polytropic, such that where C is a constant, , , and with the polytropic coefficient .

When is a polytropic process a thermodynamic process?

• A thermodynamic process described by the above equation is called a Polytropic process. • For a Polytropic process between two states 1-2 p V p Vn constant 2 2 n 1 1 = =. Remarks. • When n=0, p = constant, and the process is a constant pressure or an isobaric process.

Which is the exponent of the polytropic process?

The polytropic process can describe gas expansion and compression which include heat transfer. The exponent n is known as the polytropic index and it may take on any value from 0 to ∞, depending on the particular process.