A bowl of cubes was added to a pitcher of water and the water in the pitcher cooled by 45.0°C. If the total energy absorbed was 0.5 kcalwhat was the mass of the ice cube?

How much heat energy needs to be given up to freeze 2.12 kg of milk if initially the milk was at the room temperature 20 oC? Assume that the latent heat of fusion of milk is 275700 J/kg, and the specific heat of milk is 3890 J/kgoC.

19. The following fission reaction (shown below) occurs in a nuclear power plant. There are 1.50 x 1016 uranium-235 atoms that are simultaneously undergoing this reaction. The uranium is surrounded by 17.5 kg of heavy water, which has a specific heat capacity of 4.70 x 10³ J/kg °C. If 90% of the energy released in the nuclear reactions is absorbed as thermal energy by the heavy water, determine the increase in temperature of he heavy water. ✔✔✔✔ 235U+n→ Zr + 139 Te + 3(n) 92 40 52 mzr-94 = 93.906 u MTe-139 = 138.935 u Mu-235 = 235.044 u

What is the ratio of the energy required to warm 125 g of Ice (0.0 \deg C) to body temperature (37 \deg C) to warming the same amount of water through the same temperature change? Answer format is the number Eice/Ewater = (2 significant figures) Latent Heat of Fusion of Water: 335, 000 J/kg Specific Heat Capacity of Water: 4186 J/kg/\deg C

Di O 11:PA (1) Suppose a person is covered head to foot by wool clothing with average thickness of 2 cm and is transferring energy of 6000 joules by conduction through the clothing for 2 minutes. What is the temperature difference across the clothing, given the surface area is 1.4m?? (Given: Thermal conductivity of wool is 0.04 W/mK) The difference in temperature = (2) A 9.15 kg sample of water at 11°C is in a calorimeter. You drop a piece of iron with a mass of 0.41 kg at 260°C into it. After the sizzling subsides, what is the final equilibrium temperature? (Given: Sp. Heat of water 1cal/g°C & Sp. Heat of iron is 0.106 cal/g°C) Equilibrium temperature in celcius =

A 63 kg man had a fever of 41.45m ºC (normal body temperature is 37 ºC). Assuming that the human body is mostly water, how much heat was required to raise its temperature that much?

A Pyrex baking dish with a mass of 545g warms up by 96.7 eC when it absorbs s0.9 kJ of heat an oven. What is the specific heat capacity of the dish in J/g°c? Tc0, 9222 56S b) If 7.5 kg of ice at O°C is put into an icebox, how many joules of heat are absorbed from the other items in the icebox as the ice melts? (For H2O, AHus Lt 334.7 J/g & AHvap Ly 2259.4 J/3) c) How much energy Joules) is required to boil off 1 gallon (3786g) of water that starts out at 21.50C? (See pt. b above for useful constant.)