One mole of copper at a uniform temperature of 0°C is placed in thermal contact with a second mole of copper which, initially, is at a uniform temperature of 100°C. Calculate the temperature of the 2-mole system, which is contained in an adiabatic enclosure, when thermal equilibrium is attained. Why is the common uniform temperature not exactly 50° C? How much thermal energy is transferred, and how much entropy is produced by the transfer? The constant pressure molar heat capacity of solid copper varies with temperature as
Cp = 22.64 + 6.28×10−3T J/mole K
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Data given from function Cp=22.64 + 6.28 x (10^-3)*T [Jmol-1 K-1
]
Cp(J/mol.K) T(K) 24.524 300 24.838 350 400 25.152 25.466 450 500 25.78 550 26.408 26.722 650 27.036 700 750 27.35 27.664 800 27.978 28.292 28.606 950 1000 28.92 1050 29.234 1100 29.548 1150 29.862 30.176 1200 1250 30.49 1300 30.804 1350 31.118 358 31.16824 The specific heat capacity of solid copper above 300 K is given by Cp-22.64+6.28 x 103TJmol K1]...
Solve the following from the introduction to the thermodynamics
of materials (5.12 only part (b) and (c) sixth edition
Problem: 4.1 A rigid container is divided into two compartments
of equal volume by a partition.
One compartment contains 1 mole of ideal gas A at 1 atm, and the
other
contains 1 mole of ideal gas B at 1 atm. Calculate the increase in
entropy which
occurs when the partition between the two compartments is removed.
If the first
compartment...
2 a) An ideal gas with a Cv of 1.5R independent of temperature is initially contained in a volume of 0.05 L at a pressure of 10 atm and an initial temperature of 1200°C. The volume is then increased to 0.50 L. What will be the final pressure and temperature of the gas if the total amount of gas is unchanged, and the gas undergoes reversible adiabatic expansion? How much work will be produced? Calculate the change in entropy of...
SKMM 3433 A solid body which is initially at a uniform temperature Tİ is exposed to an ambient air at temperature Te. Explain how you would determine the maximum amount of heat that can be transferred to the body. What does this amount of heat represent? Q2. (a) (5 marks) A wall ofa room is made of lightweight concrete material (ρ= 1600 kg/m.に0.79 W/m K and cp 0.84 kJ/kg K) with a thickness of 150 mm. Initially the wall is...
Please solve no.6, 8 & no.1, 4 in chapter2.
For an ideal gas PV MRZ where n is the number of moles. Show that the heat transferred in an infinitesimal quasistatic process of an ideal gas can be written as n R 8.) An explosive liquid at temperature 300 K contains a spherical bubble of radius 5 mm, full of its vapour. When a mechanical shock to the liquid causes adiabatic compression of the bubble, what radius of the bubble...
O Ask Your Teacher My Notes O 3/6 polnts | Previous Answers ColFunPhys1 14.P028. C and ty 27 C. The blocks are placed in contact with each other and come to Two copper blocks, each of mass 1.98 kg, initially have different temperatures,t, 21 thermal equilibrium. No heat is lost to the surroundings. (a) Find the final temperature of the blocks. 24 Find the heat transferred between them. 4574 (b) Find the entropy change of each block during the time...
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4. Two 3.5 kg blocks of lead are sus are initially not in contact. g. One is at 80°C, while the other is at 30°C. They a. If the two blocks are brought into contact, what is the final temperature of the rought into contact, what is the final temperature of the two blocks? How much heat is transferred in the process? You may assume no heat is lost to the environment. b. The two blocks are brought into contact...