According to 1st law of thermodynamics Select one: O heat and work are convertible mass and energy are equal None mass and light are convertible mass and energy are convertible
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A: given Cv=c1 + c2T
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A: GivenCV=f2Riand CP=f+22Ri
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A: GIVEN DATA- FILL IN THE BLANK GIVEN ABOUT SECOND LAW OF THERMODYNAMICS
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Q: At a Celsius temperature of 37 °C, what are the corresponding Fahrenheit and absolute (on both…
A: As per given question We have to convert to kelvin and Celsius scale At Celsius temperatures =37°c
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A: Given Pressure, P1 = 90 psia = 5.5 MPa P2 = 15 psia = 0.1 MPa…
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A: GIVEN DATA A FILL IN THE BLANK QUESTION GIVEN WE HAVE TO FILL APPROPRIATE OPTION
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A: GIVEN:mass of air m=1 poundP1=90psiaP2=15psia
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Q: An air conditioning system is used to keep the house at 65°F when the outside temperature is 85°F.…
A: 650 F = 291.43 K 850 F = 302.59 K COP of the system = [(Tc/(Th-Tc)] = 26.11
Q: Question 34 The minimum heat needed to increase the temperature of 1.00 kg of steel (c,-500. J kg K)…
A: Write the equation for the required heat. Required heat(Q)=mass mcpchange in temperature ∆T
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A: GivenC=69%N=5%H=2.5%S=7%LCV= 27243.11kJ/kg
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A: b is the correct answer.
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A: The image for the control volume is given below,
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Q: In temperature measurement experiment, if three temperatures are considered (50 °C, -5 °C, and 20…
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A: Given:P1=50 barV2V1=5n=2
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A: given data: inlet pressure(P1)=14.7psia 1psia=6.895KPa so pressure(P1)=14.7*6.895=101.35KPa…
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- The tip of a soldering iron consists of a 0.6-cm- diameter copper rod, 7.6 cm long. If the tip must be 204C, what are the required minimum temperature of the base and the heat flow, in watts, into the base? Assume that h=22.7W/m2KandTair=21C.A cylindrical liquid oxygen (LOX) tank has a diameter of 1.22 m, a length of 6.1 m, and hemispherical ends. The boiling point of LOX is -179.4C. An insulation is sought that will reduce the boil-off rate in the steady state to no more than 11.3 kg/h. The heat of vaporization of LOX is 214 kJ/kg. If the thickness of this insulation is to be no more than 7.5 cm, what would the value of its thermal conductivity have to be?What are the important modes of heat transfer for a person sitting quietly in a room? What if the person is sitting near a roaring fireplace?
- 1.77 Explain each in your own words. (a) What is the mode of heat transfer through a large steel plate that has its surfaces at specified temperatures? (b) What are the modes when the temperature on one surface of the steel plate is not specified, but the surface is exposed to a fluid at a specified temperature?thermodynamics. The dominant force of attraction for CO2 whose density is 1.98 gram per liter at 273 kelvin temperature and 10 atmospheric pressure condition are ________ forces.Calorimetry In a kitchen there are two identical pans that have been previously heated, one of the pans is filled with 1/2 liter of Water at 100◦C and the other with 1/2 liter of oil at 130◦C. After that, no there is more fire that keeps introducing heat to both liquids. In that instant, a person who had cut 300 grams of potato into small cubes at a temperature of 25◦C, decides to pour half the amount of potato in the boiling water and the other half in the burning oil. a) Determine the temperature of the thermal equilibrium between the pore potatoes in the water, and the same for nocao in the oil, considering each cases as isolated systems. (b) Explain why the thermal equilibrium temperatures in both cases are almost the same, mention the physical fundamentals that characterize that result. information in the image respectively: water density: oil density: specific heat of water: specific oil heat: specific heat of the potato:
- the title of the book: Engineering Thermofluids Thermodynamics, Fluid Mechanics, and Heat Transfer by: Mahmoud Massoudthermodynamics Describe the operation of thermodynamics systems and their properties and explain the application of the first law of thermodynamics to appropriate systems given in the figure 1.2. At the end explain the relationships between system constants R, Cv, and Cp for a perfect gas where a perfect gas has a molar mass of 26kg/k mole and value of gamma is 1.26.It takes 15 minutes to warm up from 10 C to 20 C in a room whose temperature is 30 C. Assuming Newton's law of cooling, how long would it takes to warm up from 10 C to 25 C?
- A well insulated piston-cylinder assembly contains one mole of ideal gas. There are two 3000 kg blocks on this well insulated 0.04 m2 piston. Its starting temperature is 600 K and ambient pressure is 4 bar. The gas is compressed by adding another 3000 kg block. Fixed volume heat capacity is given as (5/2) R.(a) Calculate the values of ∆Ssis and ∆Sis.(b) Does this process violate the second law of thermodynamics? Explain.Subject: Thermodynamics IPlease present your solution in a readable and orderly manner.The molar heat capacities of substances varies with temperature. The general function for determining the molar heat capacity is given below; Cp = ( a + b T + c T 2 )R . In case of a gas where a = 3.245, b = 7.108 x10 ^-4 K ^-1 , and c = -4.06 x10^ -8 K ^-2 for temperatures in the range of 300 Kelvins to 1,500 Kelvins. What is the heat capacity (in Joules per Kelvin per mole) of this gas at 1,500 kelvins? NOTE: Express answer in THREE SIGNIFICANT FIGURES.