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Calculate the final temperature of 1 L (1000 g) of water, initially at 10°C, and mixed with 1000g of iron initially at 70°C.
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- Suppose 6.6 kg of chloroform at 24.4°C is poured into 6.6 kg of propylene glycol at 37°C. Calculate the final equilibrium temperature, neglecting any energy processes associated with mixing, given Cprop = 2500 J/(kg-K) and Cchloroform = 1050 J/(kg-K). T = °CA volumetric flask made of Pyrex is calibrated at 20.0°C. It is filled to the 175-mL mark with 34.5°C glycerin. After the flask is filled, the glycerin cools and the flask warms so that the combination of glycerin and flask reaches a uniform temperature of 32.0°C. The combination is then cooled back to 20.0°C. (The average volume expansion coefficient of glycerin is 4.85 10-4(°C)−1.) (a) What is the volume of the glycerin when it cools to 20.0°C?A piece of copper of 0.10 kg, initially at 95°C, is introduced into a 0.28kg aluminum container containing 0.20 kg of water at 15°C. What is the final temperature of the system?
- Specific heat of metals problem: How many grams of copper shots, initially at 100 °C is poured into an aluminium cupwith a mass of 50.0 g and contains 100 g of water, initially at 24°C? The finaltemperature of the mixture is 35°C.C of aluminun = 0.217 cal/g°C;C of copper = 0.092 cal/g°C.During a marathon race David uses energy at a rate of 272 W. What volume of body fluid does he lose in the 5.5 hours of the race if 21.0% of the energy goes to the muscle tissue and the rest is used in removing the perspiration from the body. The latent heat of vaporization is 2.41 106 J/kg at 37.0°C and density of water is 1000 kg/m3. Answer in cubic meters.It’s possible to boil water by adding hot rocks to it, a technique that has been used in many societies over time. If you heat a rock in the fire, you can easily get it to a temperature of 500°C. If you use granite or other similar stones, the specific heat is about 800 J/kg ⋅ K. If 5.0 kg of water at 10°C is in a leak-proof vessel, what minimum number of 1.0 kg stones must be added to bring the water to a boil?
- Most cars have a coolant reservoir to catch radiator fluid that may overflow when the engine is hot. A radiator is made of copper and is filled to its 16.0-L capacity when at 10.0°C. What volume of radiator fluid will overflow when the radiator and fluid reach a temperature of 95.0°C, given that the fluid's volume coefficient of expansion is ß = 400x10-6/°C?A substance has a melting point of 20°C and a heat of fusion of 3.9 x 104 J/kg. The boiling point is 150°C and the heat of vaporization is 7.8 x 104 J/kg at a pressure of 1.0 atm. The specific heats for the solid, liquid, and gaseous phases are 600 J/(kg-K), 1000 J/(kg-K), and 400 J/(kg-K), respectively. The quantity of heat required to raise the temperature of 3.80 kg of the substance from -6°C to 128°C at a pressure of 1.0 atm, is closest toThe optimum cooling rate for preserving red blood cells is 2* 10³ °C/min. At this optimum rate, how long would it take to cool red blood cells from 37°C to 196°C ?
- The following information is given for mercury at 1 atm: AHvap (356.60°C) = 295.6 J/g AHfus (-38.90°C) = 11.60 J/g T, = 356.60°C Tm =-38.90°C Specific heat gas = 0.1040 J/g °C Specific heat liquid = 0.1390 J/g °C A 40.60 g sample of liquid mercury is initially at 199.70°C. If the sample is heated at constant pressure (P = 1 atm), kJ of energy are needed to raise the temperature of the sample to 375.00°C. Submit Answer Retry Entire Group 1 more group attempt remainingA tire is filled with air at 15°C to a gauge pressure of 220 kPa. If the tire reaches a temperature of 39°C, what fraction of the original air must be removed if the original pressure of 220 kPa is to be maintained? CALTONFO MacBook ProA 25.95 g sample of methanol at 35.60 °C is added to a 38.65 g sample of ethanol at 24.70 °C in a constant-pressure calorimeter. If the final temperature of the combined liquids is 28.65 °C and the heat capacity of the calorimeter is 19.3 J/C, determine the specific heat of methanol.