Use the values in the PV diagram (below) to calculate the heat gained by an ideal gas in one complete cycle.
a. 3000 J
b.1500 J
c.2000 J
d.1000 J
e.2500 J
Homework Answers
Since this is a complete cycle then internal energy does does not change so dU =0
Since dQ = dU + dW then
dQ = dW = (1/2) (XZ) (ZY) = (1/2) 25*160 = 2000 J
Option C
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Use the values in the PV diagram (below) to calculate the heat
gained by an ideal...
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(d) 0.10 mol of an ideal gas undergoes an isothermal (constant temperature) process 1 to 2 as shown in the P-V diagram below. The net heat transfer (Q) during this process is: (Conversion: 1 atm = 1.013 x 10° Pa and 1 cm = 10) p (atm) 2 1 0 V(em) 1000 2000 3000 (i) 200 (ii) 334) (iii) 400 (iv) 600 (v) 230 (vi) 0J (e) Given an ideal gas which consists of only 10 atoms. Each atom has...
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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 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...
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...
(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...
(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
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What is the thermal efficiency of the engine? Express...
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)...
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TB4 The PV diagram in the figure is for n moles of an ideal monatomic gas. The gas is initially at point A. The paths AD and BC represent isothermal changes. R is the universal gas constant. Let the...
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undergoes the three processes drawn on the p-V diagram below. The
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completing one cycle. What is the thermal efficiency of this
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Problem Statement A piston-cylinder heat engine containing a monatomic ideal gas undergoes the three processes drawn on the p-V diagram below. The gas is...
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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
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...
(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...
ANSWER ALL PARTS
As shown in the pV diagram, an ideal gas moves through a cycle from A to B to C and then back to A. From state A to state B, the ideal gas absorbs 80.0 J of heat and its internal (i.e. its thermal) energy increases by 30.0 J. From state B to state C, the internal energy of the ideal gas decreases by 20.0 J. As such, determine the following quantities: B V The work done...
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