A certain mechanical device with a mechanism similar to a piston contains a certain amount of gas. Upon compression from 30 L to 10 L, the gas released 450 J of heat. Experiment shows that the external pressure of the mechanical device is given by: Pext = AsinV + BcosV + CsinhV + DcoshV
A certain mechanical device with a mechanism similar to a piston contains a certain amount of gas. Upon compression from 30 L to 10 L, the gas released 450 J of heat. Experiment shows that the external pressure of the mechanical device is given by: Pext = AsinV + BcosV + CsinhV + DcoshV
Chapter2: The Kinetic Theory Of Gases
Section: Chapter Questions
Problem 15CQ: One cylinder contains helium gas and another contains krypton gas at the same temperature. Mark each...
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A certain mechanical device with a mechanism similar to a piston contains a certain amount of gas. Upon compression from 30 L to 10 L, the gas released 450 J of heat. Experiment shows that the external pressure of the mechanical device is given by:
Pext = AsinV + BcosV + CsinhV + DcoshV
Where:
A = 100
B = 80
C = 1x10⁻²⁵
D = 5x10⁻³⁰
sin = sine function
cos = cosine function
sinh = hyperbolic sine function
cosh = hyperbolic cosine function
V = in liters
Pext = in atm
Determine the change in internal energy of the system in kilojoules.
TIP: usually, expressions involving trigonometric functions are in radians.
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