Chapter 20 - UCF College of Sciences
... The change in internal energy must be zero since it is a state variable If DEint = 0, Q = -W In a cyclic process, the net work done on the system per cycle equals the area enclosed by the path representing the process on a PV diagram ...
... The change in internal energy must be zero since it is a state variable If DEint = 0, Q = -W In a cyclic process, the net work done on the system per cycle equals the area enclosed by the path representing the process on a PV diagram ...
CHAPTER 6 - Thermochemistry
... The gases are the system; piston and everything else are the surroundings. Surroundings- Everything other than the system. Closed System- One in which energy is exchanged with the surroundings, but not matter. Force- Push or pull on an object. F = ma, F is force, m is mass in kilograms, a is acceler ...
... The gases are the system; piston and everything else are the surroundings. Surroundings- Everything other than the system. Closed System- One in which energy is exchanged with the surroundings, but not matter. Force- Push or pull on an object. F = ma, F is force, m is mass in kilograms, a is acceler ...
(a) T
... must lead to the same final result for the system and its surroundings regardless of which system choice is made. Result (open system) = Result (closed system) This is demonstrated in the following example, where the same result is obtained by choosing for the system first a given mass of material ( ...
... must lead to the same final result for the system and its surroundings regardless of which system choice is made. Result (open system) = Result (closed system) This is demonstrated in the following example, where the same result is obtained by choosing for the system first a given mass of material ( ...
Chapter 3. Energy and the First Law
... • If the process is irreversible and involves work, one must be careful because dWrev = -PdV is not applicable. • If the process does not involve work, the calculation is done in the usual way. • Implicit in all of these calculations is the assumption that the system is internally uniform so that it ...
... • If the process is irreversible and involves work, one must be careful because dWrev = -PdV is not applicable. • If the process does not involve work, the calculation is done in the usual way. • Implicit in all of these calculations is the assumption that the system is internally uniform so that it ...
Chapter 4: Energy Analysis of Closed Systems
... If the temperature of an ideal gas system is held constant, then the equation of state provides the pressure-volume relation ...
... If the temperature of an ideal gas system is held constant, then the equation of state provides the pressure-volume relation ...
Examples Paper 2 (1-2)
... processes by using the physical framework of drawing control surfaces enclosing control volumes, even though it is not the only, and arguably not always the best, way. Recall that: “a control volume is a region in space separated from its surroundings by a real or imaginary boundary, the control sur ...
... processes by using the physical framework of drawing control surfaces enclosing control volumes, even though it is not the only, and arguably not always the best, way. Recall that: “a control volume is a region in space separated from its surroundings by a real or imaginary boundary, the control sur ...