A 34.2 gram piece of aluminum (c = 0.215 cal/g°C) is at 71.4°C. It is placed in a beaker that contains 12 grams of 17.5°C water. Calculate the, temperature at which it will come to equilibrium:
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- Could you solve part D? d)If the pond were at a temperature of T = 0.0°C and covered by a d = 0.10 m thick layer of ice at this same temperature, how long Δt in hours would it take to melt the ice? The latent heat of fusion for ice is Lf = 334 kJ/kg and its densityThe specific heat capacity of metals are normally much smaller than that of water. If we should place a 2-kilogram block of iron at 40C into 2 kilogram of water at 20C and the final temperature of the two becomes ... Explain in Rationale section.. A. at or about 30C. B. more than 30C. C. less than 30C.Question 1 A small metal bar whose initial temperature was 20 degrees Celcius, is dropped into a large container of boiling water. How long will it take to reach 900C if it is known that its’ temperature increases 2 degrees Celcius in 1 second? Question 2 How long will it take the bar to reach 98 degrees Celcius in Problem 1?
- A glass flask whose volume is 1000.00 cm3cm3 at 0.0∘C∘C is completely filled with mercury at this temperature. When flask and mercury are warmed to 54.5 ∘C∘C, 8.75 cm3cm3 of mercury overflow. Part A If the coefficient of volume expansion of mercury is 18.0×10−5K−118.0×10−5K−1, compute the coefficient of volume expansion of the glass. Express your answer in inverse Celsius degrees.Super Invar, an alloy of iron and nickel, is a strong material with a very low coefficient of thermal expansion (0.20×× 10^-6 celcius). A 2.5 m -long tabletop made of this alloy is used for sensitive laser measurements where extremely high tolerances are required. A) How much will this alloy table expand along its length if the temperature increases 7.0 C∘? Express your answer to two significant figures and include the appropriate units. B) How much will a 2.5-m-long table made of steel expand along its length if the temperature increases 7.0 C∘? Express your answer to two significant figures and include the appropriate units.Lead has a density of 11.3 103 kg/m3 at 0C. (a) What is the density of lead at 90C? (b) Based on your answer to part (a), now consider a situation in which you plan to invest in a gold bar. Would you be better off buying it on a warm day? Explain.
- Explain in paragraph/s how does the Kelvin temperature scale differ from the Celsius scale?The figure to the right shows a pV-diagram for 0.0040 mole of ideal H2 gas. The temperature of the gas does not change during the segment bc. What volume does this gas occupy at point c?A constant-volume gas thermometer hasa pressure of 80.3 kPa at -10.0 °C and a pressure of 86.4 kPa at 10.0 °C. (a) At what temperature does the pressure of this systemextrapolate to zero? (b) What are the pressures of the gas at thefreezing and boiling points of water? (c) In general terms, howwould your answers to parts (a) and (b) change if a different constant-volume gas thermometer is used? Explain.
- A 4.00-m-long cylinder of solid aluminum has a radius of 2.00 cm. 1)If the cylinder is initially at a temperature of 5.00∘C, how much will the length change when the temperature rises to 30.0°C? (Express your answer to three significant figures.) 2)Due to the temperature increase, by how much (in %) would the density of the aluminum cylinder decrease? (Express your answer to three significant figures.) 3)By what percentage does the volume of the cylinder increase? (Express your answer to three significant figures.)SHOW COMPLETE SOLUTIONS AND ILLUSTRATIONS A 5-meter long metal pipe at 15°C is heated until it increases itslength by 0.0025 m at 102°C. A) What is the initial temperature in Fahrenheit? B) What is the initial temperature in kelvin? C) What is the coefficient of linear expansion of the metal?Answer the following parts of the question. Part A) Normal body temperature. The average normal body temperature measured in the mouth is 310 KK. What would Celsius and Fahrenheit thermometers read for this temperature? Enter your answers numerically separated by a comma. Part B) Elevated body temperature. During very vigorous exercise, the body's temperature can go as high as 40 ∘C∘C. What would Kelvin and Fahrenheit thermometers read for this temperature? Enter your answers numerically separated by a comma. Part C) Temperature difference in the body. The surface temperature of the body is normally about 7 ∘C∘C lower than the internal temperature. Express this temperature difference in kelvins and in Fahrenheit degrees. Enter your answers numerically to three significant figures, separated by a comma. Part D) Blood storage. Blood stored at 4.0∘C∘C lasts safely for about 3 weeks, whereas blood stored at -160∘C∘C lasts for 5 years. Express 4.0∘C∘C on the Fahrenheit and…