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Two copper blocks, each of mass 1.25 kg, one at 54°C and the other at 0eC,...
please answer 3.) Calculate AH and Astot when two copper blocks, each of mass 10.0 kg,...
please answer
3.) Calculate AH and Astot when two copper blocks, each of mass 10.0 kg, one at 100°C and the other at 0°C, are placed in contact in an isolated container. The specific heat capacity of copper is 0.385 J/(g K) and may be assumed constant over the temperature range involved.
1. Calculate ΔH and ΔStot when two iron blocks, each with a mass of 1.00 kg...
1. Calculate ΔH and ΔStot when two iron blocks, each with a mass of 1.00 kg and 4 kg, one at 200°C and the other at 25°C, are placed in contact in an isolated container. The specific heat capacity of iron is 0.449 J K−1 g−1 and may be assumed constant over the temperature range involved.
HELP!! ASAP please 2. Imagine that we have two large copper blocks, A and B, which...
HELP!! ASAP please
2. Imagine that we have two large copper blocks, A and B, which are isolated from the surroundings. Block A is at a temperature of 250 K, and block B is at a temperature of 300 K. As the blocks are large, we can assume that a small amount of heat flowing into or out of them is reversible, and that such a process will not change the temperature of the block. It therefore follows that for...
Problem 2: (10 pts) A 30-kg iron block at initial temperature 200°C and a 40-kg copper...
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...
Problem 7.30 You place into an insulated container a 1.8 kg block of aluminum at a...
Problem 7.30 You place into an insulated container a 1.8 kg block of aluminum at a temperature of 43°C in contact with a 2.4 kg block of copper at a temperature of 18°C. The specific heat of aluminum is 0.91 J/K/g and the specific heat of copper is 0.391/K/g, what is the final temperature of the two blocks? oC the tolerance is +/-296
a) Define entropy as a thermodynamic state variable. b) Determine the final temperature when a block of copper at 0 °C...
a) Define entropy as a thermodynamic state variable. b) Determine the final temperature when a block of copper at 0 °C is added to 1.0 kg liquid water at 80 °C in an insulated container at constant atmospheric pressure. The copper has a heat capacity of 0.01 kJ kg1 and the specific heat of water is 4.2 kJ kg1 K (both assumed constant with temperature) c) Calculate the change in entropy of the system in b). s it appropriate to...
8) A block of copper (Cp,m = 24.44 J K-1 mol-1 ) of mass 2.00 kg...
8) A block of copper (Cp,m = 24.44 J K-1 mol-1 ) of mass 2.00 kg at 0 ℃ is introduced into an insulated container in which there is 1.00 mol H2O(g) at 100 ℃ and 1.00 atm. Assuming that all the vapour is condensed to liquid water, determine: (a) the final temperature of the system; (b) the heat transferred to the copper block; and (c) the entropy change of the water, the copper block, and the total system. >>...
A 34 kg iron block and a 48-kg copper block, both initially at 80°C, are dropped...
A 34 kg iron block and a 48-kg copper block, both initially at 80°C, are dropped into a large lake at 15°C. Thermal equilibrium is established after a while as a result of heat transfer between the blocks and the lake water. Determine the total entropy change for this process. The specific heat of Iron at room temperature is cp0.45 kJ/kg.K. The specific heat of copper at 27°C is ep 0,386 kJ/kg.K. Iron Lake 15°C Copper The total entropy change...
4. Two 3.5 kg blocks of lead are sus are initially not in contact. g. One...
4. Two 3.5 kg blocks of lead are sus are initially not in contact. g. One is at 80°C, while the other is at 30°C. They a. If the two blocks are brought into contact, what is the final temperature of the rought into contact, what is the final temperature of the two blocks? How much heat is transferred in the process? You may assume no heat is lost to the environment. b. The two blocks are brought into contact...
A 46 kg copper block initially at 140°C is dropped into an insulated tank that contains...
A 46 kg copper block initially at 140°C is dropped into an insulated tank that contains 90 L of water at 10°C. Determine the final equilibrium temperature and the total entropy change for this process. The specific heat of water at 25°C is Cp= 4.18 kJ/kg-K. The density of water is 997 kg/m3. The specific heat of copper at 27°C is cp=0.386 kJ/kg-K. Water Copper 90 L The final equilibrium temperature is 15.85 K. The total entropy change during this...
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3.) Calculate AH and Astot when two copper blocks, each of mass 10.0 kg, one at 100°C and the other at 0°C, are placed in contact in an isolated container. The specific heat capacity of copper is 0.385 J/(g K) and may be assumed constant over the temperature range involved.
HELP!! ASAP please
2. Imagine that we have two large copper blocks, A and B, which are isolated from the surroundings. Block A is at a temperature of 250 K, and block B is at a temperature of 300 K. As the blocks are large, we can assume that a small amount of heat flowing into or out of them is reversible, and that such a process will not change the temperature of the block. It therefore follows that for...
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...
Problem 7.30 You place into an insulated container a 1.8 kg block of aluminum at a temperature of 43°C in contact with a 2.4 kg block of copper at a temperature of 18°C. The specific heat of aluminum is 0.91 J/K/g and the specific heat of copper is 0.391/K/g, what is the final temperature of the two blocks? oC the tolerance is +/-296
a) Define entropy as a thermodynamic state variable. b) Determine the final temperature when a block of copper at 0 °C is added to 1.0 kg liquid water at 80 °C in an insulated container at constant atmospheric pressure. The copper has a heat capacity of 0.01 kJ kg1 and the specific heat of water is 4.2 kJ kg1 K (both assumed constant with temperature) c) Calculate the change in entropy of the system in b). s it appropriate to...
A 34 kg iron block and a 48-kg copper block, both initially at 80°C, are dropped into a large lake at 15°C. Thermal equilibrium is established after a while as a result of heat transfer between the blocks and the lake water. Determine the total entropy change for this process. The specific heat of Iron at room temperature is cp0.45 kJ/kg.K. The specific heat of copper at 27°C is ep 0,386 kJ/kg.K. Iron Lake 15°C Copper The total entropy change...
4. Two 3.5 kg blocks of lead are sus are initially not in contact. g. One is at 80°C, while the other is at 30°C. They a. If the two blocks are brought into contact, what is the final temperature of the rought into contact, what is the final temperature of the two blocks? How much heat is transferred in the process? You may assume no heat is lost to the environment. b. The two blocks are brought into contact...
A 46 kg copper block initially at 140°C is dropped into an insulated tank that contains 90 L of water at 10°C. Determine the final equilibrium temperature and the total entropy change for this process. The specific heat of water at 25°C is Cp= 4.18 kJ/kg-K. The density of water is 997 kg/m3. The specific heat of copper at 27°C is cp=0.386 kJ/kg-K. Water Copper 90 L The final equilibrium temperature is 15.85 K. The total entropy change during this...
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