A kettle is used to increase the temperature of 0.25 L of water by 5 degrees Celsius, and the time taken for the temperature to change is measured three times. The same kettle is used to increase the temperature of 045 L of water by 50 degrees Celsius. Again, three measurements are made. The
measured results are shown in the table. Which of the two sets of results is more precise?
Volume of Water (L) Time (6Time Time (6)
0.25
15.5 15.2 15.9
0.45
45.1 44.9 45.4
A. The measurements of the heating time of the 045 L volume of water are more precise,
B. The measurements of the heating time of both volumes of water are equally precise
C. The measurements of the heating time of the 0.25 L volume of water are more preciso