Passage III
A mercury thermometer, at an initial temperature of 20°C, was placed in 30°C water, and the temperature registered by the thermometer was recorded over time. This procedure was repeated using water samples at 40°C and 50°C (see Figure 1). Next, the same thermometer, at an initial temperature of 50°C, was placed in an air sample at 20°C, and the temperature registered by the thermometer was recorded over time. This procedure was repeated using air samples at 30℃ and 40℃ (see Figure 2).
(Note: Assume that the designated temperatures of the water samples and air samples did not change during the measurements.)
16. Based on Figure 2, if the thermometer, at an initial temperature of 50℃, had been placed in an air sample at 10℃, how long would it most likely have taken the thermometer reading to reach 10℃?
Your Answer is
Correct Answer is J
Explanation
See figure 2, when the air temperature is 20°C, it takes about 400-500 sec for the thermometer to drop from 50°C to 20°C. So if it should take longer to drop from 50°C to 10°C, only J meets