Question

Please answer and label all of the following questions.

1) Suppose you are hiking down the Grand Canyon. At the top, the temperature early in the morning is a cool 2.57 °C. By late afternoon, the temperature at the bottom of the canyon has warmed to a sweltering 33.9 °C. What is the difference between the higher and lower temperatures in (a) Fahrenheit degrees and (b) kelvins?

2) Ideally, when a thermometer is used to measure the temperature of an object, the temperature of the object itself should not change. However, if a significant amount of heat flows from the object to the thermometer, the temperature will change. A thermometer has a mass of 32.2 g, a specific heat capacity of c = 879 J/(kg C°), and a temperature of 11.6 °C. It is immersed in 119 g of water, and the final temperature of the water and thermometer is 65.5 °C. What was the temperature of the water in degrees Celsius before the insertion of the thermometer?

3) An ice chest at a beach party contains 12 cans of soda at 2.45 °C. Each can of soda has a mass of 0.35 kg and a specific heat capacity of 3800 J/(kg C°). Someone adds a 7.45-kg watermelon at 26.4 °C to the chest. The specific heat capacity of watermelon is nearly the same as that of water. Ignore the specific heat capacity of the chest and determine the final temperature T of the soda and watermelon in degrees Celsius.

Answer 1