WebI found this formula for a polytropic process, defined by P V n = c o n s t a n t, in a book: C = R γ − 1 + R 1 − n. where C is molar specific heat and γ is adiabatic exponent. WebMay 22, 2024 · The exponent n is known as the polytropic index and it may take on any value from 0 to ∞, depending on the particular process. There are some special cases of n, …
Polytropic Process Index -- help please Physics Forums
WebAug 18, 2024 · One way to analyze a non-polytropic process is by solving the energy balance between two states to get the temperature change of the working fluid, then using that temperature change in the equation of state to calculate the volume or pressure change. WebWe now use our polytropic process condition for which Pv n = constant or P1v1 n = P 2v2 n Solving for v 2 1.0281 m /kg 0.2 2.5 (0.1253) P P v v 3 1/n 1/1.2 2 1 2 1 = = = To determine the fluid phase at state 2, we go to the saturation pressure table at 0.2 MPa to find: vf = 0.001061 m 3/kg and v g = 0.8855 m 3/kg can back up camers on car re ors
Formula for molar specific heat capacity in polytropic process
WebSep 1, 2024 · A polytropic process is a process that obeys the relation $pV^n=C.$ However, when I try to solve a problem involving this relationship with, for example, $n = 1.5$ my ... Some specific values of n correspond to particular cases: n = 0 {\displaystyle n=0} for an isobaric process, n = + ∞ {\displaystyle n=+\infty } for an isochoric process. In addition, when the ideal gas law applies: n = 1 {\displaystyle n=1} for an isothermal process, n = γ {\displaystyle n=\gamma } See more 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 describes expansion and … See more 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 See more A solution to the Lane–Emden equation using a polytropic fluid is known as a polytrope. See more For certain values of the polytropic index, the process will be synonymous with other common processes. Some examples of the effects of varying index values are given in the following table. When the index n is between any two of the former values (0, … See more • Adiabatic process • Compressor • Internal combustion engine • Isentropic process See more Webn 0=P C=isobaric process (constant pressure process) W= ⋅ − = ⋅ ⋅ −P V V P m v v(2 1 2 1) ( ) n 0 P const isobaric n 1 T const isothermal ideal gas n k s const isentropic n v const … can backup cameras be installed into cars