The mole number is 4. Please excuse the unlabeling of the diagram because of software problem. The Cycle starts at the upper left corner A at a temperature Of 200° K and expands at constant pressure of 5x10* N/m² to state B at the upper right with a temperature of 400° K

Modern Physics
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ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
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Chapter10: Statistical Physics
Section: Chapter Questions
Problem 8P
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; then
decreases at constant volume to a pressure of 2.5x10 N/m2 and temperature 200°K
at state C on the lower right. and from there compressed at
constant pressure to point D in the lower left at a temperature of 100° K. From D it increases the
pressure at constant volume back to A. Thus it has completed a cycle ABCDA.
a) Find the volumes at the corners A, B, C and D using the gas law equation PV= nRT
b) Find the work done for each path of the cycle and the net work of the cycle
c) Determine which parts of the cycle give positive heat and compute them using formulas for Q
and Qv.
d) Find the internal energy U at state A and B and its change.
e) If we use this cycle to operate an engine, what is the input heat?
f) What is the efficiency of the engine?
Transcribed Image Text:; then decreases at constant volume to a pressure of 2.5x10 N/m2 and temperature 200°K at state C on the lower right. and from there compressed at constant pressure to point D in the lower left at a temperature of 100° K. From D it increases the pressure at constant volume back to A. Thus it has completed a cycle ABCDA. a) Find the volumes at the corners A, B, C and D using the gas law equation PV= nRT b) Find the work done for each path of the cycle and the net work of the cycle c) Determine which parts of the cycle give positive heat and compute them using formulas for Q and Qv. d) Find the internal energy U at state A and B and its change. e) If we use this cycle to operate an engine, what is the input heat? f) What is the efficiency of the engine?
HANDIN HW Assignment # 4-2:
The mole number is 4. Please excuse the unlabeling of the diagram because of software
problem.
The Cycle starts at the upper left corner A at a temperature
Of 200° K and expands at
constant pressure of 5x10* N/m2 to state B at the upper right
with a temperature of 400° K
Transcribed Image Text:HANDIN HW Assignment # 4-2: The mole number is 4. Please excuse the unlabeling of the diagram because of software problem. The Cycle starts at the upper left corner A at a temperature Of 200° K and expands at constant pressure of 5x10* N/m2 to state B at the upper right with a temperature of 400° K
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