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.
Homework Answers
A) 1.6kW
B) 9%
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The figure (Figure 1)shows the cycle for a heat engine that uses
a gas having γ...
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...
(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...
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...
IReview Part A The figure (Figure 1)shows two different processes by which 66 mol of gas...
IReview Part A The figure (Figure 1)shows two different processes by which 66 mol of gas move from state 1 to state 2. The dashed line is an isotherm What is the temperature of the isothermal process? Express your answer to two significant figures and include the appropriate units. Figure 1 of 1> TValue Units P (kPa) Submit Request Answer 200 ▼ Part B Isotherm 100 What maximum temperature is reached along the straight-line process? Express your answer to two...
A heat engine does 20 J of work per cycle while exhausting 30 J of waste...
A heat engine does 20 J of work per cycle while exhausting 30 J of waste heat. What is the engine's thermal efficiency? Express your answer using two significant figures. Write the answer as a percent
11. A reversible heat engine uses a three-step cycle consisting of an isothermal expansion at temperature...
11. A reversible heat engine uses a three-step cycle consisting of an isothermal expansion at temperature Ti, a constant volume cooling to temperature T2, and adiabatic compression back to the initial state. (a) Sketch the P-V diagram (b) If 1 mole of a van der Waals gas is used the working material, the efficiency of this engine is defined to be E = Suppose that the heat capacity of gas is independent of temperature. Show that the efficiency of the...
A Stirling Engine uses 8.1 x 10^-3 mol of an ideal gas, operates between hot and...
A Stirling Engine uses 8.1 x 10^-3 mol of an ideal gas, operates between hot and cold heat reservoirs of temperatures 95 degree celsius and 24 degree celsius, and runs at a rate of 0.7 cps. Q) what is the engine's network per cycle?
A Carnot engine has an efficiency of 45 % and takes in heat from a high-temperature...
A
Carnot engine has an efficiency of 45 % and takes in heat from a
high-temperature reservoir at 168 ∘C.
What is the Celsius temperature of the engine's
low-temperature reservoir?
T = _____ °C
(Answer is NOT 168°C)
Take temperatures and efficiencies to be exact. A Carnot engine has an efficiency of 45 % and takes in heat from a Nigh-temperature reservoir at 168 °C Part A What is the Celsius temperature of the engine's low-temperature reservoir? Express your answer...
Constants I Periodic Table A refrigerator using helium gas operates on the reversed cycle shown in...
Constants I Periodic Table A refrigerator using helium gas operates on the reversed cycle shown in the following figure. Assume that T1 -18 °C and T2 =-78 °C(Figure 1) Figure く 1of1 p (kPa) Adiabats 150 V (cm) 0 20 40 60 80 100 What is the refrigerator's coefficient of performance? Express your answer using two significant figures. you need s hotrecoghized. Review a lis acceptable units. ANSWER 5: Deduction:-3% K 1.2 P 2000J Previous Answers ANSWER 6: Deduction:-3% Correct...
(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...
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...
IReview Part A The figure (Figure 1)shows two different processes by which 66 mol of gas move from state 1 to state 2. The dashed line is an isotherm What is the temperature of the isothermal process? Express your answer to two significant figures and include the appropriate units. Figure 1 of 1> TValue Units P (kPa) Submit Request Answer 200 ▼ Part B Isotherm 100 What maximum temperature is reached along the straight-line process? Express your answer to two...
11. A reversible heat engine uses a three-step cycle consisting of an isothermal expansion at temperature Ti, a constant volume cooling to temperature T2, and adiabatic compression back to the initial state. (a) Sketch the P-V diagram (b) If 1 mole of a van der Waals gas is used the working material, the efficiency of this engine is defined to be E = Suppose that the heat capacity of gas is independent of temperature. Show that the efficiency of the...
A
Carnot engine has an efficiency of 45 % and takes in heat from a
high-temperature reservoir at 168 ∘C.
What is the Celsius temperature of the engine's
low-temperature reservoir?
T = _____ °C
(Answer is NOT 168°C)
Take temperatures and efficiencies to be exact. A Carnot engine has an efficiency of 45 % and takes in heat from a Nigh-temperature reservoir at 168 °C Part A What is the Celsius temperature of the engine's low-temperature reservoir? Express your answer...
Constants I Periodic Table A refrigerator using helium gas operates on the reversed cycle shown in the following figure. Assume that T1 -18 °C and T2 =-78 °C(Figure 1) Figure く 1of1 p (kPa) Adiabats 150 V (cm) 0 20 40 60 80 100 What is the refrigerator's coefficient of performance? Express your answer using two significant figures. you need s hotrecoghized. Review a lis acceptable units. ANSWER 5: Deduction:-3% K 1.2 P 2000J Previous Answers ANSWER 6: Deduction:-3% Correct...
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