In: Statistics and Probability
6. Enthalpy is a measure of total energy in a thermodynamic system. The following table presents enthalpy measurements on 16 water based systems. Four measurements are made on each of four systems which differ by concentration of NaCl (table salt).
Concentration (%) |
Enthalpy |
|||
5 |
1.62 |
1.60 |
1.62 |
1.66 |
10 |
2.69 |
2.66 |
2.72 |
2.73 |
20 |
3.56 |
3.45 |
3.65 |
3.52 |
30 |
3.35 |
3.18 |
3.40 |
3.06 |
|
5-10 |
-1.07 |
10-5 |
1.07 |
20-5 |
1.92 |
30-5 |
1.62 |
5-20 |
-1.92 |
10-20 |
-0.85 |
20-10 |
0.85 |
30-20 |
0.55 |
|
5-30 |
-1.62 |
10-30 |
-0.55 |
20-30 |
0.30 |
30-10 |
-0.30 |
All concentrations are significant at the 0.05 level. WHY?