The table shows the same data about how the temperature of each vial of insulin changed over 15minutes.

Question

Vial Initial temperature (°C) Final temperature (°C)
Vial on the counter 2.5 5.9
Vial in the refrigerator 2.5 4.0
Which statement is correct?
A. thermal energy was transferred more slowly into the vial on the counter.
B.thermal energy was transferred more slowly into the vial in the refrigerator.
C. thermal energy was transferred into both vials at the same rate

Answer 1

To determine the correct statement about the thermal energy transfer in the two vials, we can analyze the initial and final temperatures of each vial:

1. Vial on the counter:

   • Initial temperature: 2.5°C
   • Final temperature: 5.9°C
   • Temperature increase: 5.9°C - 2.5°C = 3.4°C

2. Vial in the refrigerator:

   • Initial temperature: 2.5°C
   • Final temperature: 4.0°C
   • Temperature increase: 4.0°C - 2.5°C = 1.5°C

From this analysis, we can see that the thermal energy transfer (as indicated by the temperature increase) was greater in the vial on the counter (3.4°C) compared to the vial in the refrigerator (1.5°C).

Therefore, the correct statement is: A. thermal energy was transferred more slowly into the vial on the counter.

However, the statement might seem misleading given that the vial on the counter experienced a greater increase in temperature, which usually indicates faster thermal energy transfer.

Thus, since the vial in the refrigerator had a smaller increase in temperature, the more accurate interpretation based on your options would actually lean towards B, while both options might present an initial misinterpretation regarding thermal energy transfer rates. The understanding should be centered on how environment affects thermal changes.

In summary, B might be the intended correct option since it's in relation to the temperature gain being less in the refrigerator vial versus the counter.