an unknown substance of mass 200 g at a temperature of 148 degree C is put...
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An unknown substance has a mass of 16.7 g. The temperature of the substance increases by...
An unknown substance has a mass of 16.7 g. The temperature of the substance increases by 13.7∘ C when 53.8 J of heat is added to the substance. The table lists the specific heats of select substances lead 0.128 silver 0.235 copper 0.385 iron 0.449 aluminum 0.903 water 4.184 What is the most likely identity of the unknown substance?
A mass M of solid metal at temperature T is put into 3.0kg of water which is initially at 90°C. T...
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A mass M of solid metal at temperature T is put into 3.0kg of water which is initially at 90°C. The metal and water are placed in an insulated container The specific heat for water is 4186K of 60°C. The latent heat associated with the solid-liquid transition of the metal is 7.5 x 10. The specific heat for the metal is 600 in the solid phase and 400% in the liquid phase The metal has a...
A hot 104.2 g lump of an unknown substance initially at 171.6 °C is placed in...
A hot 104.2 g lump of an unknown substance initially at 171.6 °C is placed in 35.0 mL of water initially at 25.0 °C and the system is allowed to reach thermal equilibrium. The final temperature of the system is 46.6 °C. Substance aluminum graphite rhodium titanium Specific heat (J/(g•°C)) 0.897 0.709 0.243 0.523 0.132 0.388 Using this information and the specific heat values for several metals in the table, identify the unknown substance. Assume no heat is lost to...
A hot 105.8 g lump of an unknown substance initially at 179.7 °C is placed in 35.0 mL of water initially at 25.0 °C and...
A hot 105.8 g lump of an unknown substance initially at 179.7 °C is placed in 35.0 mL of water initially at 25.0 °C and the system is allowed to reach thermal equilibrium. The final temperature of the system is 77.4 °C. Substance Specific heat (J/(g·°C)) aluminum 0.897 graphite 0.709 rhodium 0.243 titanium 0.523 tungsten 0.132 zinc 0.388 water 4.184 Using this information and the specific heat values for several metals in the table, identify the unknown substance. Assume no...
200 g of an unknown metal powder at Thot = 72°C are dropped into a negligible...
200 g of an unknown metal powder at Thot = 72°C are dropped into a negligible heat capacity calorimeter containing 150 g of water at 16°C. The final equilibrium temperature is measured to be 36.6°C. 1. Calculate the specific heat of the metal powder c. c = J/kg-°C 2. Identify the metal from the list below. Water Beryllium Aluminum Silicon Iron Copper Silver Gold Lead 3. Using the data table, calculate the specific heat per mole Cmolar of each pure...
A 125 g sample of an unknown substance is heated to 93.6 °C and then dropped...
A 125 g sample of an unknown substance is heated to 93.6 °C and then dropped into 100.0 g of water at 19.0°C in a calorimeter. The temperature of the water rises to 31.0°C. What is the specific heat of the substance? Assume no heat lost to the surroundings. The specific heat of water is 4.184 J/ (g•°C).
2. A construction worker drops a hot 100-g iron rivet at 500 °C into a bucket...
2. A construction worker drops a hot 100-g iron rivet at 500 °C into a bucket containing 500 g of mercury at 20°C. Assuming that no heat is lost to the surroundings or the bucket, what is the final temperature of the rivet and mercury? 3. An unknown liquid of mass 400 g at a temperature of 80°C is poured into 400 g of water at 40°C. The final equilibrium temperature of the mixture is 49°C. What is the specific...
QUESTION 7 A 437.2 g sample of an unknown substance requires 8460to increase its temperature from...
QUESTION 7 A 437.2 g sample of an unknown substance requires 8460to increase its temperature from 19.3 °C to 68.9 °C. The specific heat of the substance is __J/g °C. QUESTION 8 A 437.2 g sample of an unknown substance requires 8460 ) to increase its temperature from 19.3 °C to 68.9 °C. According to table 5.1 in the text, the sample may be copper lead aluminum iron QUESTION 9 A 30.0 g piece of aluminum (C = 0.897 J/g...
A chunk of ice of mass 50 grams at 0 degree C is dropped into an...
A chunk of ice of mass 50 grams at 0 degree C is dropped into an aluminum container of mass 200 grams which contains 400 grams of water at 22 degree C. What is the temperature after thermal equilibrium is reached? Assume no energy is lost to the surroundings. The specific heat of aluminum is 0.22 calorie/gram C degree.
A 29.3 g piece of metal is heated to 97 degree C and dropped into a...
A 29.3 g piece of metal is heated to 97 degree C and dropped into a calorimeter containing 50.0 g of water (specific heat capacity of water is 4.18 J/g degree C) initially at 22.9 degree C. The empty calorimeter has a heat capacity of 125 J/K. the final temperature of the water is 25.96 degree C. Ignoring significant figures., calculate the specific heat of the metal. A) 0.481 J/gK. B) 0.361 J/gK C) 0.120 J/gK D) 0.300 J/gK E)...
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A mass M of solid metal at temperature T is put into 3.0kg of water which is initially at 90°C. The metal and water are placed in an insulated container The specific heat for water is 4186K of 60°C. The latent heat associated with the solid-liquid transition of the metal is 7.5 x 10. The specific heat for the metal is 600 in the solid phase and 400% in the liquid phase The metal has a...
A hot 104.2 g lump of an unknown substance initially at 171.6 °C is placed in 35.0 mL of water initially at 25.0 °C and the system is allowed to reach thermal equilibrium. The final temperature of the system is 46.6 °C. Substance aluminum graphite rhodium titanium Specific heat (J/(g•°C)) 0.897 0.709 0.243 0.523 0.132 0.388 Using this information and the specific heat values for several metals in the table, identify the unknown substance. Assume no heat is lost to...
2. A construction worker drops a hot 100-g iron rivet at 500 °C into a bucket containing 500 g of mercury at 20°C. Assuming that no heat is lost to the surroundings or the bucket, what is the final temperature of the rivet and mercury? 3. An unknown liquid of mass 400 g at a temperature of 80°C is poured into 400 g of water at 40°C. The final equilibrium temperature of the mixture is 49°C. What is the specific...
QUESTION 7 A 437.2 g sample of an unknown substance requires 8460to increase its temperature from 19.3 °C to 68.9 °C. The specific heat of the substance is __J/g °C. QUESTION 8 A 437.2 g sample of an unknown substance requires 8460 ) to increase its temperature from 19.3 °C to 68.9 °C. According to table 5.1 in the text, the sample may be copper lead aluminum iron QUESTION 9 A 30.0 g piece of aluminum (C = 0.897 J/g...
A chunk of ice of mass 50 grams at 0 degree C is dropped into an aluminum container of mass 200 grams which contains 400 grams of water at 22 degree C. What is the temperature after thermal equilibrium is reached? Assume no energy is lost to the surroundings. The specific heat of aluminum is 0.22 calorie/gram C degree.
A 29.3 g piece of metal is heated to 97 degree C and dropped into a calorimeter containing 50.0 g of water (specific heat capacity of water is 4.18 J/g degree C) initially at 22.9 degree C. The empty calorimeter has a heat capacity of 125 J/K. the final temperature of the water is 25.96 degree C. Ignoring significant figures., calculate the specific heat of the metal. A) 0.481 J/gK. B) 0.361 J/gK C) 0.120 J/gK D) 0.300 J/gK E)...
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