P₁ P3 Р 1 T 2 T₂ 3 T₁ V A heat engine consists of a heat source that causes a monatomic gas to expand, pushing against a piston, there by doing work. The gas begins at a pressure of p₁-300 kPa, a volume of V₁=150 cm³, and room temperature, T₁= 20 °C. On reaching a volume of V₂=450 cm³, the piston is locked in place, and the heat source is removed. At this point the gas cools back to room temperature. Finally, the piston is unlocked and used to isothermally compress the gas back to its initial state. The cycle is shown on the pV-diagram in the figure. Molar heat capacity at constant pressure for monatomic ideal gas is Cp = Cy+ R = 5R/2 where the universal gas constant is R = 8.314 J/mol K) Determine the work done on the gas in the process 2-3. Express your answer in J.
P₁ P3 Р 1 T 2 T₂ 3 T₁ V A heat engine consists of a heat source that causes a monatomic gas to expand, pushing against a piston, there by doing work. The gas begins at a pressure of p₁-300 kPa, a volume of V₁=150 cm³, and room temperature, T₁= 20 °C. On reaching a volume of V₂=450 cm³, the piston is locked in place, and the heat source is removed. At this point the gas cools back to room temperature. Finally, the piston is unlocked and used to isothermally compress the gas back to its initial state. The cycle is shown on the pV-diagram in the figure. Molar heat capacity at constant pressure for monatomic ideal gas is Cp = Cy+ R = 5R/2 where the universal gas constant is R = 8.314 J/mol K) Determine the work done on the gas in the process 2-3. Express your answer in J.
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Transcribed Image Text:P₁
P3
Р
V.
T₁
2 T₂
3 T₁
V
V.
A heat engine consists of a heat source that causes a monatomic gas to
expand, pushing against a piston, there by doing work. The gas begins at a
pressure of p₁-300 kPa, a volume of V₁=150 cm³, and room temperature, T₁=
20 °C. On reaching a volume of V₂=450 cm³, the piston is locked in place, and
the heat source is removed. At this point the gas cools back to room
temperature. Finally, the piston is unlocked and used to isothermally compress
the gas back to its initial state. The cycle is shown on the pV-diagram in the
figure. Molar heat capacity at constant pressure for monatomic ideal gas is
Cp = Cv+ R = 5R/2 where the universal gas constant is R = 8.314 J/mol K)
Determine the work done on the gas in the process 2-3.
Express your answer in J.
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