Problem 2 8-kg of iron at 180°C is added to 3-kg of water at 20°C. What...
When 15-kg of some unknown at 180°C is added to 4-kg of water at 20°C the resulting temperature is 60°C. What is the specific heat of the unknown? J Cwater = 4186 kg:K, Lf = 3 For water : Cice = 2100 kg.k - 34 x 105 kg
of ice at -S °C is added to 40 kg of water initially at 20 °C. Assume that the container is well insulated. (a) Find the final equilibrium temperature. (5 points) 0b) Caleulate the change in internal energy of the 40 kg water when thermal equilberium is established. (5 points) (c) If a 3 kg piece of copper at 30°C is also added to the original system( Le. system with ice d wat an (7 points) er at their initial...
Exactly 10.3 mL of water at 29.0°C is added to a hot iron skillet. All of the water is converted into steam at 100.0°C. The mass of the pan is 1.30 kg and the molar heat capacity of iron is 25.19 J/mol C). What is the temperature change of the skillet? oC Exactly 10.3 mL of water at 29.0°C is added to a hot iron skillet. All of the water is converted into steam at 100.0°C. The mass of the...
Problem 2: (10 pts) A 30-kg iron block at initial temperature 200°C and a 40-kg copper block at initial temperature 100°C are dropped into a very large lake at 20°C. Thermal equilibrium is established after a while as a result of heat transfer between the blocks and lake water. Both blocks have constant specific heats, i.e. Ciron = 0.45 kJ/kg. K and Ccopper = 0.386 kJ/kg. K. Hint: The very large lake can be treated as a heat reservoir and...
(20%) Problem 3: A thermos contains m = 0. 79 kg of tea at IT, = 31° C. Ice (m, = 0.055 kg, T, = 0° C) is added to it. The heat capacity of both water and tea is c 4186 J/(kg K), and the latent heat of fusion for water is L4= 33.5 x 104 J/kg. A 50% Part (a) Input an expression for the final temperature after the ice has melted and the system has reached thermal...
Exactly 17.8 mL of water at 28.0 °C is added to a hot iron skillet. All of the water is converted into steam at 100.0°C. The mass of the pan is 1.45 kg and the molar heat capacity of iron is 25.19 J/(mol·°C). What is the temperature change of the skillet?
Exactly 18.0 mL of water at 24.0 °C is added to a hot iron skillet. All of the water is converted to steam at 100.0°C. The mass of the skillet is 1.05 kg. What is the change in temperature of the skillet?
Exactly 10.3 mL of water at 31.0 degree C are added to a hot iron skillet. All of the water is converted into steam at 100 degree C. The mass of the pan is 1.15 kg and the molar heat capacity of iron is 25.19 J/(mol middot degree C). What is the temperature change of the skillet? The temperature of the skillet goes down, not up. Remember, the heat gained by the water is LOST by the skillet: Q_skillet =...
Exactly 15 mL of water at 20 °C is added to a hot frying pan made completely out of iron that weighs 1.5 kg. If the 15 mL of added water is converted to steam at 100 °C determine the temperature change of the frying pan. The molar heat capacity of iron is 25.19 J mol-1 K-1.
Exactly 10.1 mL of water at 31.0 degree C are added to a hot iron skillet. All of the water is converted into steam at 100.0 degree C. The mass of the pan is 1.50 kg and the molar heat capacity of iron is 25.19 J/(mol middot degree C). What is the temperature change of the skillet? 104 degree C