So the answer is c,correct?
The density of copper decreases as temperature increases. Which statement accurately describes the changes in a sample of copper when it is warmed from room temperature to 95 degree Celcius.
a. The sample will become lighter.
b. The sample will become heavier.
c. The sample will expand.
d. The sample will contract.
To determine the correct answer, we need to understand the relationship between density and temperature for copper. The question states that the density of copper decreases as temperature increases. So, as the temperature of the copper sample increases, its density decreases.
Now, let's analyze the given options:
a. The sample will become lighter.
This statement seems reasonable because if the density decreases, it might imply that the sample becomes lighter. However, it is important to note that density refers to how much mass is packed into a given volume, not the weight of the sample. Therefore, we cannot conclusively say that the sample will become lighter based on the given information.
b. The sample will become heavier.
Since the density of copper decreases with temperature increase, it is unlikely that the sample will become heavier.
c. The sample will expand.
This statement aligns with the given information. When substances, like copper, are heated, they tend to expand. Therefore, it is likely that the copper sample will expand as its temperature increases.
d. The sample will contract.
Based on the information provided, this statement is incorrect. The decrease in density with temperature suggests that the copper sample will expand rather than contract.
Based on our analysis, the most accurate statement is c. The sample will expand.