Bob has a 0.450-kg block of an unknown material. He conducts an experiment and finds that...
In the specific heat capacity experiment, the unknown object has a mass of 0.085 kg and was cooled to -6C. Then, it was placed in a calorimeter (mcalorimeter = 0.12 kg) that contain water (mwarter = 0.27 kg) at a temperature of 28 oC. After 5 minutes the temperature dropped to 23C. Determine the heat lost by the calorimeter. (cwater = 4186 J/kg. oC and ccalorimeter = 900 J/kg. oC)
In the specific heat capacity experiment, the unknown object has a mass of 0.058 kg and was cooled to -5 oC. Then, it was placed in a calorimeter (mcalorimeter = 0.12 kg) that contain water (mwarter = 0.22 kg) at a temperature of 28 C. After 5 minutes the temperature dropped to 23 oC. Determine the heat gained by the unknown object. (cwater = 4186 J/kg. C and ccalorimeter = 900 J/kg. C)
In the specific heat capacity experiment, the unknown object has a mass of 0.070 kg and was cooled to -3C. Then, it was placed in a calorimeter (mcalorimeter = 0.13 kg) that contain water (mwarter = 0.26 kg) at a temperature of 26 oC. After 5 minutes the temperature dropped to 24C. Determine the heat lost by the water. (cwater = 4186 J/kg. C and ccalorimeter = 900 J/kg. C)
A 0.320-kg block of a pure material is heated from 20.0°C to 65.0°C by the addition of 2.88 kJ of energy. Calculate its specific heat. I got 200 but that is not the right answer and it needs to be in kJ/(kg · °C)
In the specific heat capacity experiment, the unknown object has a mass of 0.073 kg and was cooled to -9 C. Then, it was placed in a calorimeter (mcalorimeter = 0.11 kg) that contain water (mwarter = 0.23 kg) at a temperature of 26 C. After 5 minutes the temperature dropped to 22.4 C. Determine the specific heat capacity of the unknown object. (cwater = 4186 J/kg. C and ccalorimeter = 900 J/kg. C)
An experiment is performed on an unknown material and produces the given heat curve. The temperature of the material is shown as a function of heat added. 550 300 400- 350 300 250 Tone K 200 100 T. 0 -50- -100 Head In the table, T1 = 48.2 °C, E, = 159 J, E2 = 819 J, E3 = 1510J, and E4 = 2910 J. Other experiments determine that the material has a temperature of fusion of Trusion = 237...
An experiment is performed on an unknown material and produces the given heal curve. The temperature of the material is shown as a function of heal added. In the table, 7 = 47.7 C, E = 167J, Es=836, E = 1410 J, and Ex=2890 J. Other experiments delcrmine that the material has a temperature of fusion of Th =239 "Cand a temperature of vaporization of Traper = 485 °C. If the sample of material has a mass of m=9.80 g,...
A 0.230 kg block of a pure material is heated from 20.0°C to 153°C by the addition of 3.95 kJ of energy. Calculate its specific heat (in J/(kg · °C)).
A 0.240 kg block of a pure material is heated from 20.0°C to 68.4°C by the addition of 5.25 kJ of energy. Calculate its specific heat (in J/(kg · °C)). J/(kg · °C) Identify the substance of which it is most likely composed. gold copper glass iron ОО silver +
A block of material has a mass of 129 kg and a volume of 3.32 x 10-2 m3. The material has a specific heat capacity and coefficient of volume expansion, respectively, of 747 J/(kg C°) and 6.70 x 10-5 (C°)-1. How much heat must be added to the block in order to increase its volume by 1.91 x 10-5 m3?