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- Which of the following thermocouples can measure temperature in a comparatively high range? 1) iron-constantan 2) chromel-alumel 3) platinum-rhodium 4) iridium-rhodiumWhich of the following statements are true? Select one or more: a. Dislocations and defects make thermal transfer easy due to plastic deformation b. Starting at room temperature, the heat conductivity of ceramics goes generally up with increasing temperature c. Starting at room temperature, the heat conductivity of ceramics goes generally down with increasing temperature d. Dislocations and defects make thermal transfer difficult due to phonon scattering e. Heat transfer in solids occurs mainly by waves of atoms vibrating f. Heat transfer in solids occurs mainly by phononsMaterial A with initial temperature of 80 ⁰C came into contact with material B with initial temperature of 15 ⁰C. What are the scenario/s that would likely to happen?Temperature of material B will be above 80 ⁰CEntropy of material A will increaseEnergy transfer is from material B to material ATemperature of material A will be below 15 ⁰CA.) If all 4 statements are trueB.) If 3 of the 4 statements are trueC.) If 2 of the 4 statements are trueD.) If only 1 of the 4 statements is trueE.) If none of the 4 statements is true
- What is the actual or real-life application of thermogravimetric analysis? Include the specific methodology.Combustion of a fuel sampie in a bomb calorimeter increases the temperature of the entire system by 5.10 °C if the calorimeter contains 1500 g of water, but only by 4.00 "Cif the calorimeter contains 1950g of water. What is the heat capacity of the dry bomb calorimeter assembly? Assume that the specific heat capacity of water is 4.18 J A. 570 J "C- B. 912 J "C-1 C. 722 J "C- D. 366 J "C-1 E. 494 J "C-The energy densities of various types of coal are listed below: Subbituminous 31 k]/g Lignite 26 kJ/g An unknown sample of one of these coals is burned in an 0.367-g sample is used, the temperature change is 8.75°C Anthracite 35 kJ/g Bituminous 28 kJ/g apparatus with a calorimeter constant of 1.3 kJ/°C. When a Which type of coal is the sample?
- 1. A room has a pine ceiling (k = 0.12 WI(m-Cº) ] that measures 3.0 m x 4.0 m 2.0 cm. On a cold day, the temperature inside the room is 20°C, and the temperature in the attic above is 8°C. If 6.0 cm of glass wool insulation ( k = 0.042 WI(m.Cº) ] were put in above the ceiling, how much energy would be saved in one hour? 2. 2.0-kg block moving with an initial speed of 5 m/s slides on a rough table and is stopped by the force of friction. Assuming that the table and air remain at 24°C, calculate the entropy change of the universe.i%V• li. In, & * D ewa 4 9::A Moderate production O Materials are basically two types .38 Metal and plastic Metallic and nonmetallic Ferrous and nonferrous Refractory materials are defined as .39 Special type of semiconductor Special types of cement Special types of metal The movement of indirect arc furnace .40 help to Mix the charge and transfer heat Mix the charge Transfer heat13. The amount of heat (Hth, thermal energy) stored in rocks, m = 500 kg, S = 840 J/(kg °C), Tfinal =50°C, Tinitial = 40°C is: ·Hth = 19*10E(6) Joules. ·Hth = 4.2 * 10E(6) Joules. %3D ·Hth = 4.2*10E(4)Joules. %3D
- subject: thermodynamics Sketch the T-S Diagram and label each region.7. Which of the following is false: a. The coefficient of thermal expansion is larger if the bond energy is smaller b. Ceramics are generally ionic bonding c. Van der Waals bonding is generally stronger than covalent bonding d. The free electrons in metallic bonding is reason for electrical conductivity 8. Which of the following is true: a. Polymers are generally denser than ceranmics b. Young's modulus of ceramics are similar to polymers c. Composites have higher tensile strength than metals d. Ceramics have low resistance to fracture than metalsQUESTION 3 A dead body was found within a closed room of a house where the temperature was a constant 66 °F. At the time of discovery, the core temperature of the body wasdetermined to be 88 ° F. One hour later a second measurement showed that the core temperature of the body was 77 ° F. Assume that the time of death corresponds to t = 0 and that the core temperature at that time was 98.6 ° F. Determine how many hours elapsed before the body was found. Type your answer in hours in the space provided below. Round your answer to one decimal place.