A block of material has a mass of 129 kg and a volume of 3.32 x...
A block of material has a mass of 129 kg and a volume of 3.32 x 10-2 m3. The material has a specific heat capacity and coefficient of volume expansion, respectively, of 747 J/(kg C°) and 6.70 x 10-5 (C°)-1. How much heat must be added to the block in order to increase its volume by 1.91 x 10-5 m3?
Homework Answers
A lead block of mass 7.0 kg is originally at a temperature of 15°C and 1 atm. It is then heated to a temperature of 64°...
A lead block of mass 7.0 kg is originally at a temperature of 15°C and 1 atm. It is then heated to a temperature of 64°C without any change in pressure. The specific heat of lead is 128 J/(kg - °C), its density is 1.13 x 104 kg/m3, and the coefficient of linear expansion is 29 x 10 -6/oC (a) Determine the work done by the lead block (b) How much heat energy is transferred during this process? J (c)...
A steel block of mass 6.4 kg is originally at a temperature of 18°C and 1...
A steel block of mass 6.4 kg is originally at a temperature of
18°C and 1 atm.
A steel block of mass 6.4 kg is originally at a temperature of 18°C and 1 atm. It is then heated to a temperature of 68°C without any change in pressure. The specific heat of steel is 452 J/(kg . °C), its density is 7.85 x 103 kq/m3, and the coefficient of linear expansion is 12 x 10-6/oc. (a) Determine the work done...
Bob has a 0.450-kg block of an unknown material. He conducts an experiment and finds that...
Bob has a 0.450-kg block of an unknown material. He conducts an experiment and finds that when he supplies 4415.0 J of heat transfer to the block, its temperature goes from 20.0°C to 65.0°C. What is the specific heat of Bob's block? /(kg oC)
You wish to cool a 1.83 kg block of iron initially at 84.0°C to a temperature...
You wish to cool a 1.83 kg block of iron initially at 84.0°C to a temperature of 57.0°C by placing it in a container of milk initially at 24.0°C. Determine the volume (in L) of the liquid needed in order to accomplish this task without boiling. The density and specific heat of milk are respectively 1,035 kg/m3 and 3,930 J/(kg · °C), and the specific heat of iron is 448 J/(kg · °C).
A silver block has a mass of 0.337 kg and is initially at a temperature of...
A silver block has a mass of 0.337 kg and is initially at a temperature of 18.4° C. How much energy must be transferred to the block as heat for it to reach a final temperature of 44.2° ;C? Use csilver =235 J/kg•K for the specific heat value of silver. -3,500 J 3,500 J -1,460 J 2,040 J -2,040 J 1,460 J
A) A block of lead has a mass of 5kg and a volume of 4.425x10-4m3 at...
A) A block of lead has a mass of 5kg and a volume of 4.425x10-4m3 at 10 degrees Celsius. What is the density of the block at 200 degrees Celsius? The Coefficient of Volumetric expansion for lead is 87x10-6 1/oC 11003 kg/m^3 11098 kg/m^3 11116 kg/m^3 B) A block of lead with twice the mass goes through the same temperature change. How does the final density compare to what you just calculated? greater less the same
Eggs with a mass of 0.12 kg per egg and a specific heat of 3.32 kJ/kg....
Eggs with a mass of 0.12 kg per egg and a specific heat of 3.32 kJ/kg. C are cooled from 30 C to 10 C at a rate of 800 eggs per minute. The rate of heat removal from the eggs is 106 kW 478 kW 8.0 kW 53 kW 159 kW
What is the heat capacity of a 20.2-kg block of ice? The specific heat capacity of...
What is the heat capacity of a 20.2-kg block of ice? The specific heat capacity of ice is 2.10 kJ/kg K. kJ/K It takes 880 J to raise the temperature of 350 g of lead from 0°C to 20.0°C. What is the specific heat of lead? kJ/(kg K) A heating coil inside an electric kettle delivers 3.20 kW of electric power to the water in the kettle. How long will it take to raise the temperature of 0.390 kg of...
A sample of an unknown material appears to weigh 300 N in air and 222 N...
A sample of an unknown material appears to weigh 300 N in air and 222 N when totally immersed in alcohol. What are (a) the volume and (b) the density of the material? (c) What material is it? The Universal constant R=8.31J/mol K The absolute temperature T (Kevin) = Tc +273.15 The atmospheric pressure=1atm=1.013*105Pa. The density of alcohol=700kg/m3. The density of aluminum=2.7*103kg/m3. The density of iron=7.86*103kg/m3. The density of water=1000kg/m3. The thermal expansion coefficient of steel: 12x10-6(1/°C) Lf of water...
A sample of lead has a mass of 21.00 kg and a density of 1.130 x104...
A sample of lead has a mass of 21.00 kg and a density of 1.130 x104 kg/m3 at 0°C. (Assume the average linear expansion coefficient for lead is 2.900 x 10-5(°C−1).) (a) What is the density of lead at 89.00°C? (Give your answer to four significant figures.) Answer in kg/m3 (b) What is the mass of the sample of lead at 89.00°C? Answer in kg
A lead block of mass 7.0 kg is originally at a temperature of 15°C and 1 atm. It is then heated to a temperature of 64°C without any change in pressure. The specific heat of lead is 128 J/(kg - °C), its density is 1.13 x 104 kg/m3, and the coefficient of linear expansion is 29 x 10 -6/oC (a) Determine the work done by the lead block (b) How much heat energy is transferred during this process? J (c)...
A steel block of mass 6.4 kg is originally at a temperature of
18°C and 1 atm.
A steel block of mass 6.4 kg is originally at a temperature of 18°C and 1 atm. It is then heated to a temperature of 68°C without any change in pressure. The specific heat of steel is 452 J/(kg . °C), its density is 7.85 x 103 kq/m3, and the coefficient of linear expansion is 12 x 10-6/oc. (a) Determine the work done...
Bob has a 0.450-kg block of an unknown material. He conducts an experiment and finds that when he supplies 4415.0 J of heat transfer to the block, its temperature goes from 20.0°C to 65.0°C. What is the specific heat of Bob's block? /(kg oC)
Eggs with a mass of 0.12 kg per egg and a specific heat of 3.32 kJ/kg. C are cooled from 30 C to 10 C at a rate of 800 eggs per minute. The rate of heat removal from the eggs is 106 kW 478 kW 8.0 kW 53 kW 159 kW
What is the heat capacity of a 20.2-kg block of ice? The specific heat capacity of ice is 2.10 kJ/kg K. kJ/K It takes 880 J to raise the temperature of 350 g of lead from 0°C to 20.0°C. What is the specific heat of lead? kJ/(kg K) A heating coil inside an electric kettle delivers 3.20 kW of electric power to the water in the kettle. How long will it take to raise the temperature of 0.390 kg of...
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