Essay on Physics
To measure the effect on the heat of fusion of ice with varying percentage impurities of NaCl crystals in the water.
Sodium Chloride crystals
Digital balance with uncertainty (±0.01 g)
Digital thermometer with uncertainty (±0.1°C)
Pipette (±0.01 cm3)
Manipulated variables: Amount of impurity added to the water
The aim of the experiment was to find the effect that impurities have on the heat capacity of the solution. Therefore the amount of impurities added to the water was varied. The amount added was 0%, 10%, 20%.
Responding variable: Heat of fusion of the ice cube …show more content…
The mixture should then be checked to make sure that the ice Is completely melted.
Measure the final weight of the mixture + weight of the cup.
This process should be repeated 2 more times to reduce human error.
This process should then be completely repeated from step 1-14 with distilled water containing 10% and 20% impurities of NaCl crystals concentration with respect to mass.
Data Collection and processing
Table consists of the data collected in the lab relating to the Heat of fusion of ice. (Distilled water used to make ice)
|Sr. No. |Room temperature |
| |(± 0.1°C) |
|1 |346 ± 5.49 |
|2 |377 ± 6.47 |
|3 |323 ± 5.27 |
|4 |320 ± 4.92 |