(II) The PV diagram in Fig. 19–31 shows two possible states of a system containing 1.55 moles of a monatomic ideal gas. ( P 1 = P 2 = 455 N / m 2 , V 1 = 2.00 m 3 , V 2 = 8.00 m 3 ) . ( a ) Draw the process which depicts an isobaric expansion from state 1 to state 2, and label this process A. ( b ) Find the work done by the gas and the change in internal energy of the gas in process A. ( c ) Draw the two-step process which depicts an isothermal expansion from state 1 to the volume V 2 , followed by an isovolumetric increase in temperature to state 2, and label this process B. ( d ) Find the change in internal energy of the gas for the two-step process B. Figure 19–31 Problem 32
(II) The PV diagram in Fig. 19–31 shows two possible states of a system containing 1.55 moles of a monatomic ideal gas. ( P 1 = P 2 = 455 N / m 2 , V 1 = 2.00 m 3 , V 2 = 8.00 m 3 ) . ( a ) Draw the process which depicts an isobaric expansion from state 1 to state 2, and label this process A. ( b ) Find the work done by the gas and the change in internal energy of the gas in process A. ( c ) Draw the two-step process which depicts an isothermal expansion from state 1 to the volume V 2 , followed by an isovolumetric increase in temperature to state 2, and label this process B. ( d ) Find the change in internal energy of the gas for the two-step process B. Figure 19–31 Problem 32
(II) The PV diagram in Fig. 19–31 shows two possible states of a system containing 1.55 moles of a monatomic ideal gas.
(
P
1
=
P
2
=
455
N
/
m
2
,
V
1
=
2.00
m
3
,
V
2
=
8.00
m
3
)
. (a) Draw the process which depicts an isobaric expansion from state 1 to state 2, and label this process A. (b) Find the work done by the gas and the change in internal energy of the gas in process A. (c) Draw the two-step process which depicts an isothermal expansion from state 1 to the volume V2, followed by an isovolumetric increase in temperature to state 2, and label this process B. (d) Find the change in internal energy of the gas for the two-step process B.
(III) The PV diagram in Fig. 15–23 shows two possible states
of a system containing 1.75 moles of a monatomic ideal
gas. (P = P, = 425 N/m², Vị = 2.00 m³, V, = 8.00 m².)
(a) Draw the process which depicts an isobaric expansion from
state 1 to state 2, and label this process A. (b) Find the work
done by the gas and the change in internal energy of the gas in
process A. (c) Draw the two-step process which depicts an
isothermal expansion from state 1 to the volume V, , followed
by an isovolumetric increase in temperature to state 2, and
label this process B.
(d) Find the change (N/m2)
in internal energy 500
of the gas for the
two-step process B.
+
!
400
2
300
200
100
FIGURE 15-23
+
+
0 2
+
+
8
10 V (m³)
Problem 12.
4
(2) Try to draw the following processes of ideal gas passing through point 1
on the given parameter p-v and T-s coordinate maps: constant pressure
process (n=0), constant temperature process (n=1), constant entropy
process (n=K) and constant volume process (n=∞). Mark accordingly
on the diagram.
Р
T +
1
V
S
(b) Air at 5000 kPa and 300 K is flowing through a pipeline. An evacuated and insulated cylinder
of volume 0.1 m' is connected to the pipeline through a valve. The valve is opened and the
cylinder is filled with air till the pressure in the cylinder reaches the line pressure. The valve is
then closed. Assuming that the air behaves like an ideal gas with Y = 1.4, determine the
temperature of the air in the cylinder at the end of the filling operation and the mass of air that is
filled in the cylinder.
Chapter 19 Solutions
Physics for Scientists and Engineers with Modern Physics
University Physics with Modern Physics (14th Edition)
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