- #1

WrongMan

- 149

- 15

## Homework Statement

a system uses monoatomic ideal gas describing the following cycle (quasi static)

and basically the p-v graph is a circle,and it starts on the left side of the circle with states A, B, C, D (so that B and D are top an bottom) and so P on A (P

_{A}) is equal to P

_{C}and V

_{B}= V

_{D}

given values:

Cv=3/2R

P

_{A}=P

_{C}= 2*10

^{5}Pa

P

_{D}=1*10

^{5}Pa

P

_{B}=3*10

^{5}Pa

V

_{A}=0.001m

^{3}

V

_{B}=V

_{D}=0.002m

^{3}

V

_{C}=0.003m

^{3}.

what is the work done by the gas?

## The Attempt at a Solution

so iv realized B to C and D to A are isothermal and i can calculate work for those, but the other two arent and they also arent adiabatic.

Im lost. there are so many relations due the first law, i don't know what to do. please a hint.