The PV - diagram in the figure below shows a cycle of a heat engine that uses 0.250 mol of an ideal gas with γ = 1.40....
The PV - diagram in the figure below shows a cycle of a heat engine that uses 0.250 mol of an ideal gas with γ=1.40. The process a b is adiabatic. (1 atm=105 Pa)
(i) Calculate the pressure of the gas at point a.
(ii) Calculate how much heat enters this gas per cycle. Indicate the process(es) where this happens.
(iii) Calculate how much heat leaves this gas in a cycle. Indicate the process(es) where this occurs.
(iv) Calculate how much work the engine does in this cycle.
(v) Calculate the thermal efficiency of the engine.
Homework Answers
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The PV - diagram in the figure below shows a cycle of a heat engine that uses 0.250 mol of an ideal gas with γ = 1.40....
The pV diagram in the figure shows a cycle of a heat engine that uses 0.250...
The pV diagram in the figure shows a cycle of
a heat engine that uses 0.250 mole of an ideal gas having
?=1.40. The curved part ab of the cycle
is adiabatic.
Part A
Find the pressure of the gas at point a.
(SOLVED)
Pa = 12.3 atm
----
Part B
How much heat enters this gas per cycle?
Qin = J
----
Part C
Where does the entering of heat happen?
----
Part D
How much heat leaves this...
A heat engine takes for 0.40 mol of ideal H2 gas around the cycle shown in the pV- diagram.
A heat engine takes for 0.40 mol of ideal H2 gas around the cycle shown in the pV- diagram.Ta=400KTb=800KTc=592K Process a→b is at constant volume, process b→c is adiabatic, and process c-> a is at constant pressure of 2 atm. The value of y for this gas is 1.40. (a) Find the pressure and volume at points a, b and c (b) Calculate Q, W, and AU for each of the processes. (c) Find the net work done by the gas in the cycle (d)...
(Figure 1) shows a pV diagram for a heat engine that uses 1.40 moles of an...
(Figure 1) shows a pV diagram for a heat engine that uses 1.40
moles of an ideal gas. The internal energy of the gas changes by
the following amounts: ΔUa→b=+4040J, ΔUb→c=−4848J, ΔUc→d=−808J, and
ΔUd→a=+1616J
How much heat is ejected by the gas per cycle? Express your
answer in joules to three significant figures.
How much work does this engine do each cycle? Express your
answer in joules to three significant figures.
What is the thermal efficiency of the engine? Express...
(Figure 1) shows a pV diagram for a heat engine that uses 1.40 moles of an...
(Figure 1) shows a pV diagram for a heat
engine that uses 1.40 moles of an ideal gas. The internal energy of
the gas changes by the following amounts:
ΔUa→b=+4040J,
ΔUb→c=−4848J,
ΔUc→d=−808J, and
ΔUd→a=+1616J
Part A
How much heat goes into this gas per cycle?
Express your answer in joules to three significant figures.
Answer: ______ J
Part B
Where in the cycle does the heat go into the gas?
Select all that apply.
c→d
b→c
d→a
a→b
Part C...
A heat engine takes 0.262 mol of a diatomic deal gas around the cycle shown in the pV-diagram bel...
A heat engine takes 0.262 mol of a diatomic deal gas around the cycle shown in the pV-diagram below. Process 1 → 2 is at constant volume, process 2-) 3 is adiabatic, and process 3-1 is at a constant pressure of P = 2.00 atm. The value of r for this gas is 1.4 2,7-600K T,-300 K T, 492 K 0 (a) Find the pressure and volume at points 1, 2, and 3. pressure (Pa) volume (m3) point 1 point...
The figure (Figure 1)shows the cycle for a heat engine that uses a gas having γ...
The figure (Figure 1)shows the cycle for a heat engine that uses
a gas having γ =1.25. The initial temperature is T1 =300K, and this
engine operates at 30 cycles per second.
HW21 Item 13 Review Part A The figure (Figure 1)shows the cycle for a heat engine that uses a gas having γ = 1.25. The initial temperature is T1 = 300 K, and this engine operates at 30 cycles per second What is the power output of the...
Suppose 0.270 mol of an ideal diatomic gas (γ=1.40) undergoes a Carnot cycle between 327C and...
Suppose 0.270 mol of an ideal diatomic gas (γ=1.40) undergoes a Carnot cycle between 327C and 127C, starting at pa =12.0x105 Pa at point a in the pV-diagram for the Carnot cycle. The volume doubles during the isothermal expansion step a to b. (a) Find the pressure and volume at points a, b, c and d. (b) Find Q, W and dU for each step and for the entire cycle. (c) Find the efficiency directly from the results of part...
The figure shows a reversible cycle through which 2.44 mol of a monatomic ideal gas is...
The figure shows a reversible cycle through which 2.44 mol of a monatomic ideal gas is taken. Assume that p = 2p0lV = 2V0,p0 = 3.91 times 105 Pa, and V0 = 0.0201 m3. Calculate (a) the work done during the cycle, (b) the energy added as heat during stroke abc, and (c) the efficiency of the cycle, (d) What is the efficiency of a Carnot engine operating between the highest and lowest temperatures that occur in the cycle? (e)...
17. A 1.00-mol sample of an ideal gas with γ c -1.40 is carried throgh the...
17. A 1.00-mol sample of an ideal gas with γ c -1.40 is carried throgh the Carnot cycle described by the digram At point A, the pressure is 25.0 atm and the temperature is 600K At point C, the pressure is 1.00 atm and the temperature is 400K. Find the net work done by the engine per cycle in kJ ㄅ main-1 2318-12-10) 135V3 T,
A 1.00-mol sample of an ideal gas (γ = 1.40) is carried through the Carnot cycle....
A 1.00-mol sample of an ideal gas (γ = 1.40) is carried through the Carnot cycle. Before the isothermal expansion takes place, the pressure of the gas is 25.0 atm and the temperature is 600 K. Before the isothermal compression, the pressure is 1.00 atm and the temperature is 400 K. Determine the pressures and volumes at all end points in the Carnot cycle (at each end point, the cycle switches between different processes).
The pV diagram in the figure shows a cycle of
a heat engine that uses 0.250 mole of an ideal gas having
?=1.40. The curved part ab of the cycle
is adiabatic.
Part A
Find the pressure of the gas at point a.
(SOLVED)
Pa = 12.3 atm
----
Part B
How much heat enters this gas per cycle?
Qin = J
----
Part C
Where does the entering of heat happen?
----
Part D
How much heat leaves this...
(Figure 1) shows a pV diagram for a heat engine that uses 1.40
moles of an ideal gas. The internal energy of the gas changes by
the following amounts: ΔUa→b=+4040J, ΔUb→c=−4848J, ΔUc→d=−808J, and
ΔUd→a=+1616J
How much heat is ejected by the gas per cycle? Express your
answer in joules to three significant figures.
How much work does this engine do each cycle? Express your
answer in joules to three significant figures.
What is the thermal efficiency of the engine? Express...
(Figure 1) shows a pV diagram for a heat
engine that uses 1.40 moles of an ideal gas. The internal energy of
the gas changes by the following amounts:
ΔUa→b=+4040J,
ΔUb→c=−4848J,
ΔUc→d=−808J, and
ΔUd→a=+1616J
Part A
How much heat goes into this gas per cycle?
Express your answer in joules to three significant figures.
Answer: ______ J
Part B
Where in the cycle does the heat go into the gas?
Select all that apply.
c→d
b→c
d→a
a→b
Part C...
A heat engine takes 0.262 mol of a diatomic deal gas around the cycle shown in the pV-diagram below. Process 1 → 2 is at constant volume, process 2-) 3 is adiabatic, and process 3-1 is at a constant pressure of P = 2.00 atm. The value of r for this gas is 1.4 2,7-600K T,-300 K T, 492 K 0 (a) Find the pressure and volume at points 1, 2, and 3. pressure (Pa) volume (m3) point 1 point...
The figure (Figure 1)shows the cycle for a heat engine that uses
a gas having γ =1.25. The initial temperature is T1 =300K, and this
engine operates at 30 cycles per second.
HW21 Item 13 Review Part A The figure (Figure 1)shows the cycle for a heat engine that uses a gas having γ = 1.25. The initial temperature is T1 = 300 K, and this engine operates at 30 cycles per second What is the power output of the...
The figure shows a reversible cycle through which 2.44 mol of a monatomic ideal gas is taken. Assume that p = 2p0lV = 2V0,p0 = 3.91 times 105 Pa, and V0 = 0.0201 m3. Calculate (a) the work done during the cycle, (b) the energy added as heat during stroke abc, and (c) the efficiency of the cycle, (d) What is the efficiency of a Carnot engine operating between the highest and lowest temperatures that occur in the cycle? (e)...
17. A 1.00-mol sample of an ideal gas with γ c -1.40 is carried throgh the Carnot cycle described by the digram At point A, the pressure is 25.0 atm and the temperature is 600K At point C, the pressure is 1.00 atm and the temperature is 400K. Find the net work done by the engine per cycle in kJ ㄅ main-1 2318-12-10) 135V3 T,
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