1. There are three units of temperature. The most common are Celsius and Fahrenheit. The equation...
2. 50 g of an unknown material is heated to 90 °C and added to 200 g of water at 25 °C. The system reaches thermal equilibrium at a temperature of 25.9 °C. What is the specific heat of the unknown material? A. 1.11 B. 4.65 C. 16.7 D. 0.235 3. How much heat must be removed from the system to freeze a 4.5 kg (10 pounds) bag of ice purchased at Buc-ee's? The latent heat of fusion for water...
Fahrenheit(F) and Celsius(C) are two temperature units that are related linearly, i.e, one can express one as a linear function of the other. If water boils at 212F and 100C, it freezes at 32F and OC. Find the temperature of 95F in Celsius.
(20%) Problem 2: A piece of unknown material has a mass of m, = 0.79 kg and an initial temperature of Tu = 79°C. The specific heat of water is cw = 4.180 x 102 J/(kg:°C). 50% Part (a) The sample of material is dropped into my = 1.4 kg of water at T = 19°C in a calorimeter. The calorimeter reaches a final temperature of Te = 34°C. Enter an expression for the specific heat of the unknown material,...
When boiling water, a hot plate takes an average of 7 minutes (min) and 16 seconds [s] to boil 150 milliliters [ml] of water. Assume the temperature in the lab is 78 degrees Fahrenheit (°F). The hot plate is rated to provide 379 watts [W]. If we wish to boil 150 milliliters (ml) of acetone using this same hot plate, how long do we expect the process to take? Acetone has a boiling point of 56 degrees Celsius [°C]. [Hint:...