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Question 1 1 pts A 50 g block of aluminum is dropped into a beaker with...
A 309 g block of copper at a temperature of 73.0°C is dropped into 579 g...
A 309 g block of copper at a temperature of 73.0°C is dropped into 579 g of water at 26.9°C. The water is contained in a 118 g glass container. Assume the glass has the same initial temperature as the water (26.9°C). What is the final temperature of the mixture? The specific heat of copper is 387 J/kg˚C, the specific heat of water is 4186 J/kg˚C, and the specific heat of glass is 837 J/kg˚C.
9) A lab assistant pours 330 g of water at 45°C into an 855-g aluminum container...
9) A lab assistant pours 330 g of water at 45°C into an 855-g aluminum container that is at an initial temperature of 10°C. The specific heat of aluminum is 900 J/kg K, and that of water is 4186 J/kg K. What is the final temperature of the system, assuming no heat is exchanged with the surroundings? A) 35°c 9) B) 28°C C)32°C D) 33°C
A 25.0-g block of ice at -15.00°C is dropped into a calorimeter (of negligible heat capacity)...
A 25.0-g block of ice at -15.00°C is dropped into a calorimeter (of negligible heat capacity) containing water at 15.00°C. When equilibrium is reached, the final temperature is 8.00°C. How much water did the calorimeter contain initially? The specific heat of ice is 2090 J/kg ∙ K, that of water is 4186 J/kg ∙ K, and the latent heat of fusion of water is 33.5 × 104 J/kg.
1. an insulated aluminum can of mass 200 g contains 300 g of water at 25...
1. an insulated aluminum can of mass 200 g contains 300 g of water at 25 C. 10 g metal block at 80 C is dropped into the water. The final temperature of the water, can, and block is 30 C. What is the specific heat of the metal block? (specific heat of H2O= 4180 J/kgC and specific heat of Al can= 900 J/kg C) 2. Define the Boltzmann's constant. 3. An ideal gas undergoes an isothermal (constant-temperature) expansion at...
A 291 g silver figure of a polar bear is dropped into the 247 g aluminum...
A 291 g silver figure of a polar bear is dropped into the 247 g aluminum cup of a well-insulated calorimeter containing 275 g of liquid water at 24.3°C. The bear's initial temperature is 99.3 °C. What is the final temperature of the water, cup, and bear when they reach thermal equilibrium? The specific heats of silver, aluminum, and liquid water are, respectively, 234 J/(kg-K), 910 J/(kg-K), and 4190 J/(kg-K). final temperature: °C
A 297 g silver figure of a polar bear is dropped into the 203 g aluminum...
A 297 g silver figure of a polar bear is dropped into the 203 g aluminum cup of a well‑insulated calorimeter containing 273 g of liquid water at 20.3 ∘ C . The bear's initial temperature is 99.1 ∘ C . What is the final temperature of the water, cup, and bear when they reach thermal equilibrium? The specific heats of silver, aluminum, and liquid water are, respectively, 234 J / ( kg ⋅ K ) , 910 J /...
1) An aluminum calorimeter of mass 58 g, has 155 g water, both at a temperature...
1) An aluminum calorimeter of
mass 58 g, has 155 g water, both at a temperature of 21°C. A 108-g
piece of metal originally kept in boiling water (T = 100°C) is
transferred to the calorimeter. The final equilibrium temperature
of the mixture is 26.6°C. Calculate the specific heat of the metal
(in J/kg). Specific Heats: Al = 900 J/kg, water =4186 J/g
2) How much heat, in kilo-joules, is required to convert 19 g of
ice at -13°C into...
A 287 g silver figure of a polar bear is dropped into the 221 g aluminum...
A 287 g silver figure of a polar bear is dropped into the 221 g aluminum cup of a well‑insulated calorimeter containing 259 gof liquid water at 22.9∘C. The bear's initial temperature is 98.9∘C. What is the final temperature of the water, cup, and bear when they reach thermal equilibrium? The specific heats of silver, aluminum, and liquid water are, respectively, 234 J/(kg⋅K), 910 J/(kg⋅K), and 4190 J/(kg⋅K).
A 43.0-g sample of copper at 99.9 °C is dropped into a beaker containing 149 g...
A 43.0-g sample of copper at 99.9 °C is dropped into a beaker containing 149 g of water at 18.2 °C. What is the final temperature when thermal equilibrium is reached? (The specific heat capacities of liquid water and copper are 4.184 J/g · K and 0.385 J/g · K, respectively.) Final temperature = How much energy is required to raise the temperature of 14.7 grams of gaseous hydrogen from 24.7 °C to 37.7 °C ? Answer: Joules.
Problem 5: A 95-g aluminum calorimeter contains 241 g of water. The aluminum and water are...
Problem 5: A 95-g aluminum calorimeter contains 241 g of water. The aluminum and water are initially in thermal equilibrium at a temperature of 9.3°C. Two solid objects are then placed in the water. One is a 50.3-g piece of copper with a specific heat of 390 J/(kg:°C) and an initial temperature of 81.2°C. The other is of unknown material with a mass of 69 g and an initial temperature of 100°C. The entire system reaches thermal equilibrium at a...
9) A lab assistant pours 330 g of water at 45°C into an 855-g aluminum container that is at an initial temperature of 10°C. The specific heat of aluminum is 900 J/kg K, and that of water is 4186 J/kg K. What is the final temperature of the system, assuming no heat is exchanged with the surroundings? A) 35°c 9) B) 28°C C)32°C D) 33°C
A 291 g silver figure of a polar bear is dropped into the 247 g aluminum cup of a well-insulated calorimeter containing 275 g of liquid water at 24.3°C. The bear's initial temperature is 99.3 °C. What is the final temperature of the water, cup, and bear when they reach thermal equilibrium? The specific heats of silver, aluminum, and liquid water are, respectively, 234 J/(kg-K), 910 J/(kg-K), and 4190 J/(kg-K). final temperature: °C
1) An aluminum calorimeter of
mass 58 g, has 155 g water, both at a temperature of 21°C. A 108-g
piece of metal originally kept in boiling water (T = 100°C) is
transferred to the calorimeter. The final equilibrium temperature
of the mixture is 26.6°C. Calculate the specific heat of the metal
(in J/kg). Specific Heats: Al = 900 J/kg, water =4186 J/g
2) How much heat, in kilo-joules, is required to convert 19 g of
ice at -13°C into...
A 43.0-g sample of copper at 99.9 °C is dropped into a beaker containing 149 g of water at 18.2 °C. What is the final temperature when thermal equilibrium is reached? (The specific heat capacities of liquid water and copper are 4.184 J/g · K and 0.385 J/g · K, respectively.) Final temperature = How much energy is required to raise the temperature of 14.7 grams of gaseous hydrogen from 24.7 °C to 37.7 °C ? Answer: Joules.
Problem 5: A 95-g aluminum calorimeter contains 241 g of water. The aluminum and water are initially in thermal equilibrium at a temperature of 9.3°C. Two solid objects are then placed in the water. One is a 50.3-g piece of copper with a specific heat of 390 J/(kg:°C) and an initial temperature of 81.2°C. The other is of unknown material with a mass of 69 g and an initial temperature of 100°C. The entire system reaches thermal equilibrium at a...
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