850.0 g iron that is initially at 500°C is dropped into a bucket containing 22.0 kg of water at 22°C. What is the final equilibrium temperature? Neglect any energy transfer to or from the surroundings (bucket). c(iron) = 448 J kg-1 °C-1 , c(water) = 4186 J kg-1 °C-1

Suppose due to a bad break of your femur, you require the insertion of a titanium rod to help the fracture heal. The coefficient of linear expansion for titanium is a-8.60-106 K and the length of the rod when it is in equilibrium with the leg bone and muscle at 37.0°C is 5.10 cm. How much shorter was the rod at room temperature (20.0°C)? um

A cube of ice is taken from the freezer at -8.8°C and placed in a 104 g iron cup filled with 279 g of water. Both the water & the cup are at 23.9°C. Eventually the system reaches thermal equilibrium at 12.4°C. Determine Qcup, Qwater (for the water initially in the cup), Qice, & the mass of the ice.Qcup = Qwater = Qice = mice =

€2 When an air bubble rises from the bottom to the top of a freshwater lake, its volume increases by 75%. If the temperature at the bottom of the lake was 3°C and at the top was 13.5°C, how deep is the lake? Hint The lake is Question Help: Message instructor Submit Question #3 3 E 80 F3 $ 4 F4 R cr dº % m deep. 5 F5 T A 6 MacBook Air F6 & 7 F7 Y U *00 8 DII F8 - ( 9 DD F9 1 0 0

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4. A well-insulated styrofoam bucket contains 150 g of ice at 0 °C. If 21 g of steam at 100 °C is injected into the bucket, what is the final equilibrium temperature of the system?(cwater=4186 J/kg.°C, Lf=3.35 × 10° J/kg, Ly=2.26 × 10° J/kg) °C ssf60ss ssf60 ss 60 ssf6u

One mole of oxygen gas is at a pressure of 5.45 atm and a temperature of 27.5°C. (a) If the gas is heated at constant volume until the pressure triples, what is the final temperature? °C (b) If the gas is heated so that both the pressure and volume are doubled, what is the final temperature? °C Submit Answer

Lead pellets, each of mass 1.90 g, are heated to 200°C. How many pellets must be added to 498 g of water that is initially at 20.0°C to make the equilibrium temperature 25.0°C? Neglect any energy transfer to or from the container. pellets Need Help? Read t

A hot air balloon uses the principle of buoyancy to create lift. By making the air inside the balloon less dense then the surrounding air, the balloon is able to lift objects many times its own weight. A large hot air balloon has a maximum balloon volume of 2090 m3. a.  If the air temperature in the balloon is 54 °C, how much additional mass, in kilograms, can the balloon lift? Assume the molar mass of air is 28.97 g/mol, the air density is 1.20 kg/m3, and the air pressure is 1 atm.

A 1.50-kg iron horseshoe initially at 650°C is dropped into a bucket containing 13.0 kg of water at 22.0°C. What is the final temperature of the water-horseshoe system? Ignore the heat capacity of the container and assume a negligible amount of water boils away. °C