Answer to Question #283424 in Molecular Physics | Thermodynamics for Engineeboy

Question

Assignment

1. One mole of an ideal monoatomic gas goes through a cycle in a heat engine. Process z is isobaric, process x is isochoric and process y is adiabatic. Find

a. The heat absorbed or released

b. Change in internal energy

c. World one for each of the three processes and whole cycle

Answer 1

The heat release:

$$Q=\Delta U-W.$$

Change in internal energy:

$$\Delta U=\frac32 NkT.$$

The work done for each of the three process and the whole cycle depends on the process.