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A: Mass of copper, m=15 kg Specific heat capacity, C=390 J/kg OC CChange in temperature = 5 o C
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- A rock of mass 0.213 kg falls from rest from a height of 27.4 m into a pail containing 0.420 kg of water. The rock and water have the same initial temperature. The specific heat capacity of the rock is 1820 J/(kg C°). Ignore the heat absorbed by the pail itself, and determine the rise in temperature of the rock and water in Celsius degrees.A temperature difference of 52 K is maintained between the sides of a 3.6-cm thick slab of plywood. What is the rate of heat transfer through a 44-cm2 area of the slab?Consider a 3-m-high, 6-m-wide, and 0.3-m-thick brick wall whose thermal conductivity is k = 0.8 W/m K. On a certain day, the temperatures of the inner and the outer surfaces of the wall are measured to be 14°C and 2°C, respectively. Determine the rate of heat loss through the wall on that day.
- Heat transfers by conduction through a glass window, connecting a 22 degree Celsius room to a 36 degree Celsius summer day outside. If the area of the window is 0.75 m^2, the thickness of the glass is 0.5 cm, and the thermal conductivity of glass is 1.0 J/s m K, how much heat transfers through the window of each second?A 23 g ice cube at -15.0oC is placed in 129 g of water at 48.0oC. The Specific heat of ice is 2.090 J/g K, the specific heat of water is 4.186 J/g K, and the latent heat of fusion for water is 333 J/g. What is final temperature in celsius of the system when the equilibrium is reached. Ignore the heat capacity of the container and assume this is in a calorimeter.A rock of mass 0.332 kg falls from rest from a height of 15.1 m into a pail containing 0.332 kg of water. The rock and water have the same initial temperature. The specific heat capacity of the rock is 1940 J/(kg ·C°). Ignore the heat absorbed by the pail itself, and determine the rise in temperature of the rock and water in Celsius degrees.
- How much thermal energy is absorbed by a 0.0220 kg ice cube as it melts? The latent heat of fusion of water is 3.40x 105 J/kg.Ice at 0 °C is placed in a Styrofoam cup containing 0.62 kg of lemonade at 32 °C. The specific heat capacity of lemonade is virtually the same as that of water; that is, c = 4180 J/(kg C°). After the ice and lemonade reach an equilibrium temperature, some ice still remains. The latent heat of fusion for water is Lf = 3.35 x 105 J/ kg. Assume that the mass of the cup is so small that it absorbs a negligible amount of heat, and ignore any heat lost to the surroundings. Determine the mass of ice that has melted, in grams.A dog loses a lot of heat by panting. The air rushing over the upper respiratory tract causes evaporation and thus heat loss. A dog typically pants pants at a rate of around 304 pants per minute. As a rough calculation, assume that one pant causes 0.0400 g of water to be evaporated from the respiratory tract. What is the rate of heat loss for the dog by panting? The heat of vaporization for water is 2256 kJ/kg.