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A spherical steel ball bearing has a diameter of 2.540 cm at 25.00OC. What is its diameter (in cm) when its temperature is raised to 100.0OC
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- What is the specific heat c of a 0.500 kg metal sample that rises 4.80 °C when 305 J of heat is added to it? O 127 J/kg.K O 108 J/kg.K O 116 J/kg.K O 101 J/kg.K O 171 J/kg.KS. At a temperature of 22.20°C the hole in a steel plate has a diameter of 1.030 cm. If a steel rod with a diameter of 1.038 cm has to just slip through this hole, to what temperature should the plate be heated? The coefficient of area expansion of steel is 24 X 10 -6/ °C. Ans: 672At 22 °C, the radius of a solid aluminum sphere is 7 cm.A, at what temperature will the volume of the sphere have increased by 3%? B, What is the increase in the sphere’s radius if it is heated to 250 °C? Assume α = 22.2×10-6 K-1and β=66.6×10-6 K-1 .
- A large steam pipe is covered with a 4.80 cm thick insulating material with a thermal conductivity of 0.17 W/(m°C). How much energy is lost every second when the temperature of the steam inside the pipe is at 265 °C and the temperature outside of the pipe is 13.0 °C? The pipe has a diameter of 3.70 m and a length of 185 m. Neglect losses through the ends of the pipe. 1.918x106 JA steel girder is 15 m at 36.°C. If the temperature drops to 5.0°C, what is the length of the girder?A steam pipe is covered with 1.50-cm-thick insulating material of thermal conductivity 0.200 cal/cm . °C . s. How much energy is lost every second when the steam is at 200.°C and the surrounding air is at 20.0°C? The pipe has a circumference of 800. cm and a length of 50.0 m. Neglect losses through the ends of the pipe.
- A 1.0kg lead (specific heat = 130 J/kg.(Cº)-1 at 80.0°C is placed in 2.0kg of water at 20.0°C. The final temperature of the lead bar is O a. 40°C O b. 28°C О с. 35°с O d. 22°C Ое. 50°сA spherical brass shell has an interior volume of 1.96 x 103 m³. Within this interior volume is a solid steel ball that have a volume of 0.54 x 10³ m³. The space between the steel ball and the inner surface of the brass shell is filled completely with mercury. A small hole is drilled through the brass, and the temperature of the arrangement in increased by 28 C°. What is the volume of mercury that spills out of the hole? Steel ball Brass shell MercuryIt is desired to just able to slip the 16.0 mm diameter glass marble through an aluminum washer. At 68.0 F, the inner diameter of the washer is 15.98 mm. To what temperature in Fahrenheit should the aluminum washer be heated for the marble just able to slip through. The marble remains at 68.0 F. aluminum = 2.3x10-50 C-1; and glass = 2.7x10-50 C-1. [Answer in 3 significant figures]
- 10. A rigid container holds 2.0 moles of gas at a pressure of 1.0atm and a temperature of 30°C. (a) Whatis the volume of the container? (b) What is the pressure if the temperature is raised to 130°CA spherical brass shell has an interior volume of 1.55 x10-3 m3. Within this interior volume is a solid steel ball thathas a volume of 5.00 x 10-4 m3. The space between the steel ball and the inner surface of the brass shell is filledcompletely with mercury. A small hole is drilled through the brass, and the temperature of the arrangement is increasedby 10 °C. What is the volume of the mercury that spills out of the hole?A 0.150-kg sample of a metal alloy is heated at 540 Celsius an then plunged into a 0.400-kg of water at 10.0 Celsius, which is contained in a 0.200-kg aluminum calorimeter cup. The final temperature of the system is 30.5 Celsius. What is the specific heat of the metal alloy in J/Kg.Celsius? O 497 O 74.60 50.00 O 3316 994