Use the table to answer the question.
Sample
Initial Temperature (*C) Final Temperature (*C) Amount of Ice Added (grams)
20.2
16.0
60
48.1
44.2
59.9
6.1
1.0
71.1
14.6
3.3
122.6
A student adds ice to several samples of water. The results are shown in the table. Which conclusion can be drawn from the results?
O As the temperature increases, the kinetic energy of the water molecules decreases.
• As the amount of ice added decreases, the temperature decreases.
O As the temperature decreases, the kinetic energy of the sample increases.
O As the amount of ice added increases, the change in temperature increases.
To draw a conclusion from the table, let's analyze the results:
1. When 60 grams of ice is added to a sample with an initial temperature of 20.2°C, the final temperature is 16.0°C. The change in temperature is 20.2 - 16.0 = 4.2°C.
2. When 59.9 grams of ice is added to a sample with an initial temperature of 48.1°C, the final temperature is 44.2°C. The change in temperature is 48.1 - 44.2 = 3.9°C.
3. When 71.1 grams of ice is added to a sample with an initial temperature of 6.1°C, the final temperature is 1.0°C. The change in temperature is 6.1 - 1.0 = 5.1°C.
4. When 122.6 grams of ice is added to a sample with an initial temperature of 14.6°C, the final temperature is 3.3°C. The change in temperature is 14.6 - 3.3 = 11.3°C.
From the data, we can see that as the amount of ice added increases, the change in temperature also increases. For instance, adding 122.6 grams of ice results in a more significant temperature change than adding 60 grams of ice. Therefore, the correct conclusion that can be drawn from the results is:
☑ As the amount of ice added increases, the change in temperature increases.
The other options can be discarded:
- "As the temperature increases, the kinetic energy of the water molecules decreases." This is incorrect; as the temperature increases, the kinetic energy of the water molecules also increases.
- "As the amount of ice added decreases, the temperature decreases." This statement is nonspecific and does not match the data provided in the table.
- "As the temperature decreases, the kinetic energy of the sample increases." This is incorrect; as the temperature decreases, the kinetic energy of the sample decreases.