THERMODYNAMICS (LL)-W/ACCESS >CUSTOM<
9th Edition
ISBN: 9781266657610
Author: CENGEL
Publisher: MCG CUSTOM
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Chapter 12.6, Problem 104FEP
For a gas whose equation of state is P(v − b) = RT, the specified heat difference cp − cv is equal to
- (a) R
- (b) R − b
- (c) R + b
- (d) 0
- (e) R(1 + v/b)
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PLEASE HELP ANSWER THIS THERMODYNAMICS PRACTICE QUESTION
The van der Wails equation of state is p ± (v-b = RT,
where p is pressure, v is specific volume, T is
temperature and R is characteristic gas constant The SI
unit of a is
(b)
A fixed mass of the ideal gas argon initially occupies a volume of 3 litres at a
pressure of 3 MPa. An isometric process, followed by an isentropic process, brings
the gas to an equilibrium state at 400°C, 4 MPa and 4 litres volume. An isobaric
process finally brings the gas back to a different equilibrium state at the initial
temperature. Determine:
(i)
the mass of gas in the closed system.
(ii)
the temperature, volume, and pressure of the gas, at each of the four
states.
(iii) the overall change in entropy between the initial and final states.
(iv) the work transfer in each of the three processes and the overall work
transfer.
(Argon: CP= 520.3 Jkg ¹K-¹, R= 208.1 Jkg-¹K-¹)
Chapter 12 Solutions
THERMODYNAMICS (LL)-W/ACCESS >CUSTOM<
Ch. 12.6 - What is the difference between partial...Ch. 12.6 - Consider the function z(x, y). Plot a differential...Ch. 12.6 - Consider a function z(x, y) and its partial...Ch. 12.6 - Prob. 4PCh. 12.6 - Prob. 5PCh. 12.6 - Consider a function f(x) and its derivative df/dx....Ch. 12.6 - Conside the function z(x, y), its partial...Ch. 12.6 - Consider air at 350 K and 0.75 m3/kg. Using Eq....Ch. 12.6 - Consider air at 350 K and 0.75 m3/kg. Using Eq....Ch. 12.6 - Nitrogen gas at 800 R and 50 psia behaves as an...
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