(II) A certain car has 14.0 L of liquid coolant circulating at a temperature of 93°C through the engine's cooling system. Assume that, in this normal condition, the coolant com- pletely fills the 3.5-L volume of the aluminum radiator and the 10.5-L internal cavities within the aluminum engine. When a car overheats, the radiator, engine, and coolant expand and a small reservoir connected to the radiator catches any resultant coolant overflow. Estimate how much coolant overflows to the reservoir if the system goes from 93°C to 105°C. Model the radiator and engine as hollow shells of aluminum. The coefficient of volume expansion for coolant is ß = 410 × 10-6/C°.

(15-34 What is the temperature inside an ideal refrigerator-freezer that operates with a COP = 7.0in a 22 degree Celcius Room?

(II) A cube of ice is taken from the freezer at - –8.5°C andplaced in an 85-g aluminum calorimeter filled with 310 g ofwater at room temperature of 20.0°C. The final situation isall water at 17.0°C. What was the mass of the ice cube?

(II) What mass of steam at 100°C must be added to 1.00 kgof ice at 0°C to yield liquid water at 30°C?

(ii) If the temperature of any object is 83.12°F then calculate its value in °C (a) – 18.88 (b) 28.4 (c) 271 (d) - 16.67

(I) Among the highest and lowest natural air temperatures claimed are 136°F in the Libyan desert and –129°F in Antarctica. What are these temperatures on the Celsius scale?

To ascertain the temperature of flue gases, 1.8 kg of copper of specific heat 0.395 kJ/kg-°K was suspended in the flue until it attained the temperature of the gases, and then dropped into 2.27 kg of water at 20°C.' If the resultant temperature of the copper and water was 37.2°C , find the temperature of the flue gases.

(I) (a) “Room temperature” is often taken to be 68°F. Whatis this on the Celsius scale? (b) The temperature of the filament in a lightbulb is about 1900°C. What is this on the Fahrenheit scale?

Occasionally, huge icebergs are found floating on the ocean’s currents. Suppose one such iceberg has a regular volume and is 120 km long, 35 km wide, and 230 m thick. (i)    How much heat would be required to melt this iceberg (assumed to be at 0°C) into liquid water at 0°C? (The density of ice is 917 kg/m3. The latent heat of fusion for ice is 33.5 x 104 J/kg.) (ii)   Assume the average annual energy consumption by a developed country in the past years was 9.3 x 1019 J. If this energy were delivered to the iceberg every year, how many years would it take before the ice is completely melted? (iii)  What will be the outcome(s) and possible implication(s) in (ii) if the time rate of the changes in average annual energy consumption is a positive number?