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Section 17.6 CalorimetryA 50.0 g thermometer is used to
Chapter 17, Problem 18E(choose chapter or problem)
Problem 18E
Section 17.6 Calorimetry
A 50.0 g thermometer is used to measure the temperature of 200 mL of water. The specific heat of the thermometer, which is mostly glass, is 750 J/kg K, and it reads 20.0°C while lying on the table. After being completely immersed in the water, the thermometer’s reading stabilizes at 71.2°C. What was the actual water temperature before it was measured?
Questions & Answers
QUESTION:
Problem 18E
Section 17.6 Calorimetry
A 50.0 g thermometer is used to measure the temperature of 200 mL of water. The specific heat of the thermometer, which is mostly glass, is 750 J/kg K, and it reads 20.0°C while lying on the table. After being completely immersed in the water, the thermometer’s reading stabilizes at 71.2°C. What was the actual water temperature before it was measured?
ANSWER:
Step 1 of 2
Here we have to find the actual water temperature before it was measured.
The mass of the thermometer is,
.
The water volume is,
.
The specific heat of the thermometer is,
.
The specific heat of the water is,
.
While lying on the table, the reading of the thermometer is .
After immersed in water, the temperature reading is .