State Of Gas|Types Of Process|Internal Energy|Work Done By Gas|Adiabatic|Polytropic Process|Heat Supplied

State Of Gas|Types Of Processes|Internal Energy|Work Done By Gas|Polytropic Process

Work Done In Adiabatic Process

Work Done In Adiabatic Processes

Ideal gas and polytropic process

Adiabatic Process |Work Done In Adiabatic Process |Questions

Adiabatic Process |Work Done In Adiabatic Process |Questions

In a cyclic process, the internal energy of the gas

What is a polytropic process, Obtain expressions for work done in a polytropic process and specific heat of gas in such a process.

A process in which work perfomed by an ideal gas is proportional to the corresponding increment of its internal energy is described as a polytropic process. If we represent work done by a ppolytropic process by W and increase in internal energy as Delta U then W prop Delta U or W=K_(1) DeltaU ...(i) For this process, it can be demonstrated that the relation between pressure and volume is given by the equation PV^( eta)= K_(2) (constant ) .....(ii) We know that a gas can have various values for molar specific heats. The molar specific heat 'C' for an ideal gas in polytropic process can be calculated with the help of first law of thermodynamics. In polytropic process process the variation of molar specific heat 'C' with eta for a monatomic gas is plotted as in the graph shown. In the graph shown, the y- coordinate of point A is ( for monatomic gas )