Air is initially at `260^(@)C` and `700pa` and occupied `0.028m^(3)`. The air is expanded at constant pressure to `0.084 m^(3)`. A polytropic process with `n=1.5` is then carried out followed by a constant temperature process which complete the cycle.
`(a)` sketch cycle in `P-V`.
`(b)` find heat received and heat rejected in the cycle.
`(c )` efficiency of cycle.

The density (rho) versus pressure (p) graph of one mole of an ideal monoatomic gas undergoing a cyclic process is shown in figure. Molecular mass of gas is M. (a) Find work done in each process. (b) Find heat rejected by gas in one complete cycle. (c) Find the efficiency of the cycle.

The density (rho) versus pressure (p) graph of one mole of an ideal monoatomic gas undergoing a cyclic process is shown in figure. Molecular mass of gas is M. (a) Find work done in each process. (b) Find heat rejected by gas in one complete cycle. (c) Find the efficiency of the cycle.

The pressure versus volume graph of one mole of an ideal monatomic gas undergoing a cyclic process is shown in figure. The molecular mass of the gas is M. (a) Find the work done in each process. (b) Find heat rejected by gas in one complete cycle. (c) Find the effiency of the cycle.

One mole of a mono atomic gas of molar mass M undergoes a cyclic process as shown in the figure. Here rho is density and P is pressure of the gas. (a) Calculate the heat rejected by the gas in one complete cycle. (b) Find the efficiency of the cycle.

An ideal monoatomic gas occupies volume 10^(-3)m^(3) at temperature 3K and pressure 10^(3) Pa. The internal energy of the gas is taken to be zero at this point. It undergoes the following cycle: The temperature is raised to 300K at constant volume, the gas is then expanded adiabatically till the temperature is 3K , followed by isothermal compression to the original volume . Plot the process on a PV diagram. Calculate (i) The work done and the heat transferred in each process and the internal energy at the end of each process, (ii) The thermal efficiency of the cycle.

An ideal monoatomic gas occupies volume 10^(-3)m^(3) at temperature 3K and pressure 10^(3) Pa. The internal energy of the gas is taken to be zero at this point. It undergoes the following cycle: The temperature is raised to 300K at constant volume, the gas is then expanded adiabatically till the temperature is 3K , followed by isothermal compression to the original volume . Plot the process on a PV diagram. Calculate (i) The work done and the heat transferred in each process and the internal energy at the end of each process, (ii) The thermal efficiency of the cycle.