blob: f56cf76c0817f337823065f73bc3517495eb030a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
// Theory and Problems of Thermodynamics
// Chapter 5
// Second law of Thermodynamics
// Example 1
clear ;clc;
//Given data
Q = 100 // energy absorbed in kJ
W = 50 // work done in kJ
// Calculations
U2_1 = Q - W // U2_1 = U2 - U1
// if it is to be restored to state 1 through an adiabatic process, then
del_U = - U2_1 // U2_1 = - (U1 - U2)
net_W = U2_1 + del_U // in kJ
mprintf('According to the second law of thermodynamics, \n The system cannot be restored to its original state by adiabatic process')
|
