In: Physics
Can someone please explain the Carnot Cycle graph in terms of what equations to use and the concepts.
This is what I think but I keep getting mixed up:
Path A to B which is Reversible Isothermal Expansion, Delta U= 0, and according to first law Q= -W and we use RTln V2/V1 for W? In path B to C, the gas expand Adiabatically, so Q= 0 and Delta U= - W. Since it is expansion so the work will be negative. We use the formula W= - Cv (T2-T1) for this path. For Path C to D, it is isothermal compression so do we flip the equation to W= RTln V4/V3 or we can keep it V3/V4 but put the negative sign on it so like - RTlnv3/v4. Finally, for path D to A, it is an adiabatic Compression do we use W= Cv(t2-t1)?