4.5 kg of aluminum at 190 C is added to 3.5 kg of water at 20 C. What is the resulting equilibrium temperature?

What mass of ice at -11.7°C is needed to cool a whale's water tank, holding 1.26 x 103 m3 of water, from 20.0°C down to a more comfortable 10.0°C?

Lake Erie contains roughly 4.00 ✕ 1011 m3 of water. How much energy is required to raise the temperature of that volume of water from 18.0°C to 21.0°C? How many years would it take to supply this amount of energy by using the 1,400-MW exhaust energy of an electric power plant?

A 50.0-g piece of brass (specific heat 380 J/kg K) is heated to 90.0° C and immersed in 100 g of water (specific heat 4184 J/kg K), initially at 15.0° C c. The well-insulated container is then sealed and allowed to reach thermal equilibrium. What is the final temperature of the system? 18.3° C 13.7° С 24.8° C 36.3° C 12.9° C

What mass of water at 28.0°C must be allowed to come to thermal equilibrium with a 1.75-kg cube of aluminum initially at 150°C to lower the temperature of the aluminum to 66.0°C? Assume any water turned to steam subsequently recondenses

On a hot day, you want to cool 0.5L of tap water initially at 25C by adding ice. (a) if you add 45g of ice, what is the final equilibrium temperature of the mixture? (b) how much ice would you need to add to the original sample of water (0.5L at 25C) so that the last of the ice melts as the mixture reaches 0C?

Lead pellets, each of mass 1.60 g, are heated to 200°C. How many pellets must be added to 451 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.

A 0.0500-kg ice cube at −30.0°C is placed in 0.350 kg of 35.0°C water in a very well-insulated container. What is the final temperature in degrees Celsius?

A 79.19 gram brass is kept initially at a high temperature TB then is dropped into 114.72 gram of water at 23.8 °C .  When equilibrium is reached the temperature of brass - water mixture is 25.3 °C.  If the specific heat of brass is 375 J / kg ° C , calculate the initial temperature of brass TB ( Given , Specific heat of water is 4186 J / kg ° C ) Initial temperature of the Brass in ( ° C ) =

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 =