The table below shows the melting point, specific heat, and heat of fusion of different solids. Suppose the same mass of these solids are at their respective melting point temperatures, which solidrequires most amount of heat to melt?SubstanceMelting PointHeat of FusionSpecific Heat79.71 cal/g5.85 cal/g21.07 cal/g15.39 cal/g31.98 cal/g0.50 cal/gC°0.033 cal/gC°0.056 cal/gC°0.030 cal/gCo0.093 cal/gC°Ice0°CLead327°CSilver961°CGold1063°CCopper1083°CO leadiceO goldO silverO O O O

Answered: The table below shows the melting…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Silver or Ag (Dr. Tree's third favorite metal) melts at 961.8°C and has a Heat of Fusion = 88 Jlgm. Let the superscript "sl" indicate that a substance is melting (i.e., solid liquid). 2. -sl a. Please find Ah for melting Ag in kJ/mole. Note: Fusion = a liquid to solid transformation. Note: Heats Fusion are traditionally reported as positive values. Engineers must determine the proper sign for their system.
A coal sample gave the following analysis by weight, Carbon 68.95 per cent, Hydrogen 9.16 per cent, Oxygen 2.17 per cent, the remainder being incombustible. For 97% excess air, determine actual weight of air required per kg of coal. Round your answer to two decimal places.
= 14 15 16 17 18 19 20 21 22 23 24 25 26 A gas storage cylinder in an ordinary chemical laboratory measures 3.9 cm wide and 16. cm high. This is the label on it. olo Contents: N, gas Pressure: 7.93 atm If the cylinder is opened and the gas allowed to escape into a large empty plastic bag, what will be the final volume of nitrogen gas, including what's collected in the plastic bag and what's left over in the cylinder? Write your answer in liters. Round your answer to 2 significant digits. ?
please show work and formulas so that i may learn the process correctly. if you use a table please mention which table was used. thank you so much. 2. Fill in the blank cells of this table: T( C) P(kPa) u(kJ/kg) Phase description 175 2524.5 325 4000 325 Saturated liquid
A 370-g sample of an unknown (nongaseous) material experiences a 24.0°C increase in temperature after absorbing 1.24 x 103) of energy. (a) What is the specific heat of this material? 3400 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. J/(kg. °C)
K). average NUSseit Number. 2. A slab of iron with temperature, T1=48 deg C is used to heat a flat glass plate that has an initial temperature of Tg1=18 deg C. Assuming no heat is lost to the environment, and the masses are m;=0.49 kg for the slab and mg=310g for the plate, what is the amount of heat transferred when the two have reached equal temperature? Assume C;=0.11 kcal/kg-deg C for iron and cg=0.20 kcal/kg-deg C for glass.
A 30 wt% Ni-70 wt% Cu alloy (Animated Figure 9.3a) is slowly cooled from 1400°C (2550°F) to 1150°C (2100°F). (a) At what temperature does the first solid phase form? i ! °C (b) What is the composition of this solid phase? i %wt Ni (c) At what temperature does the last of the liquid solidify? i °℃ (d) What is the composition of this last remaining liquid phase? i %wt Ni
A Boeing 767 due to fly from Montreal to Edmontonrequired refueling. Because the fuel gauge on the aircraft was not working, a mechanic used a dipstick todetermine that 7682 L of fuel were left on the plane.The plane required 22,300 kg of fuel to make the trip. Inorder to determine the volume of fuel required, thepilot asked for the conversion factor needed to converta volume of fuel to a mass of fuel. The mechanic gavethe factor as 1.77. Assuming that this factor was in metric units the pilot calculated the volume to beadded as 4916 L. This volume of fuel was added andthe 767 subsequently ran out the fuel, but landed safelyby gliding into Gimli Airport near Winnipeg. The errorarose because the factor 1.77 was in units of pounds perliter. What volume of fuel should have been added?
25. The temperature of 2 moles of a monatomic gas increases from 20 °C to 300 °C. By how many joules does the internal energy of the gas change, if the temperature increase takes place: a) At constant volume b) At constant pressure
Answer question 2 based on the results of question 1. You have a natural gas furnace in your home that used 78,500 cubic feet of natural gas for heating last winter. Your neighbor has a furnace that burns heating oil, and used 516 gallons of heating oil last winter. You can convert the natural gas and heating oil consumption data into Btu to determine which home used more energy for heating. Natural gas BTU: 1,028 Btu per cubic foot Oil BTU: 138,590 Btu per gallon Natural Gas BTU= 80698000 Btu Oil BTU = 71512440 Btu The home that used a natural gas furnace used more energy for heating. 2. You need a new furnace for your home, and you are comparing systems that use natural gas and heating oil. One factor to consider is the cost of fuel. You can compare the price of the fuels on an equal basis by dividing the price per unit of the fuels by the Btu content per unit of the fuels to get a price per million Btu. Assume Natural gas price = $10.50 per thousand cubic…
25 Question 10 Anwer 2 g of air in a piston cylinder is compressed isothermally. The initial temperature is 399 K, the initial pressure is 7.1 bar, and the final volume is 2.8 litres. What is the heat transfer during the process? Give your answer in Joules to the nearest whole number. Far air co1.005 kJ/kgK and cy- 0.718 kJ/kgK.
Using specific heat value at the average temperature, the internal energy (u) change of hydrogen, in kJ/kg, when it is heated from 300 to 600 K is Select one: 4110 6110 O 3249 3113

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