A sample of an ideal gas is taken through the cyclic process presented below. The associated pressure values are P, =7 kPa and P ас = 3.5 kPa. (R=8.314 J mol1.K-1) (a) Find the net work done through the entire сycle. (b) If T,= 204 K and the gas is monatomic, how many moles of the gas are in the sample? n = moles (c) What is the total change in the internal energy of the whole cycle? J (d) Use the first law of thermodynamics to calculate the amount of heat energy transfered through the process ab. J (e) What is the efficiency of the concerned engine? Express your answer in terms of percentage. e = % Pac a 1.0 3.0 Volume (m³) Pressure (kPa)
A sample of an ideal gas is taken through the cyclic process presented below. The associated pressure values are P, =7 kPa and P ас = 3.5 kPa. (R=8.314 J mol1.K-1) (a) Find the net work done through the entire сycle. (b) If T,= 204 K and the gas is monatomic, how many moles of the gas are in the sample? n = moles (c) What is the total change in the internal energy of the whole cycle? J (d) Use the first law of thermodynamics to calculate the amount of heat energy transfered through the process ab. J (e) What is the efficiency of the concerned engine? Express your answer in terms of percentage. e = % Pac a 1.0 3.0 Volume (m³) Pressure (kPa)
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Transcribed Image Text:A sample of an ideal gas is taken through the
cyclic process presented below. The
associated pressure values are P =7 kPa
and P
= 3.5 kPa.
ас
(R=8.314 J·mol¯1.K-1)
(a) Find the net work done through the entire
сycle.
J
(b) If T.=204 K and the gas is monatomic,
how many moles of the gas are in the
sample? n =
moles
(c) What is the total change in the internal
energy of the whole cycle?
J
(d) Use the first law of thermodynamics to
calculate the amount of heat energy
transfered through the process ab.
J
(e) What is the efficiency of the concerned
engine? Express your answer in terms of
percentage. e =
Pac
a
1.0
3.0
Volume (m³)
Pressure (kPa)
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