In the figure, 1.41 mole of an ideal diatomic gas can go from a to c along either the direct (diagonal) path ac or the indirect path abc. The scale of the vertical axis is set by Pab= 5.83 kPa and pc = 2.22 kPa, and the scale of the horizontal axis is set by Vbc = 5.87 m³ and V₁ = 2.77 m³. (The molecules rotate but do not oscillate.) During the transition along path ac, (a) what is the change in internal energy of the gas, and (b) how much energy is added to the gas as heat? (c) How much heat is required if the gas goes from a to c along the indirect bath abc? Pressure (kPa) Pab Pe a V₂ Volume (m³) b C

Physics for Scientists and Engineers: Foundations and Connections
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Chapter21: Heat And The First Law Of Thermodynamics
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In the figure, 1.41 mole of an ideal diatomic gas can go from a to c along either the direct (diagonal) path ac or the indirect path abc. The
scale of the vertical axis is set by Pab= 5.83 kPa and pc = 2.22 kPa, and the scale of the horizontal axis is set by Vbc = 5.87 m³ and V₁ =
2.77 m³. (The molecules rotate but do not oscillate.) During the transition along path ac, (a) what is the change in internal energy of the
gas, and (b) how much energy is added to the gas as heat? (c) How much heat is required if the gas goes from a to c along the indirect
path abc?
Pressure (kPa)
Pab
Pe
(a) Number
a
Va
Volume (m³)
(c) Number
i
(b) Number i
i
b
Vbc
Units
Units
Units
Transcribed Image Text:In the figure, 1.41 mole of an ideal diatomic gas can go from a to c along either the direct (diagonal) path ac or the indirect path abc. The scale of the vertical axis is set by Pab= 5.83 kPa and pc = 2.22 kPa, and the scale of the horizontal axis is set by Vbc = 5.87 m³ and V₁ = 2.77 m³. (The molecules rotate but do not oscillate.) During the transition along path ac, (a) what is the change in internal energy of the gas, and (b) how much energy is added to the gas as heat? (c) How much heat is required if the gas goes from a to c along the indirect path abc? Pressure (kPa) Pab Pe (a) Number a Va Volume (m³) (c) Number i (b) Number i i b Vbc Units Units Units
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