Conceptual Physics / MasteringPhysics (Book & Access Card)
12th Edition
ISBN: 9780321908605
Author: Paul G. Hewitt
Publisher: PEARSON
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Textbook Question
Chapter 23, Problem 9RCQ
Does heating a metal wire increase or decrease its electrical resistance?
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Learning Goal:
To understand the meaning and the basic applications of
pV diagrams for an ideal gas.
As you know, the parameters of an ideal gas are
described by the equation
pV = nRT,
where p is the pressure of the gas, V is the volume of
the gas, n is the number of moles, R is the universal gas
constant, and T is the absolute temperature of the gas. It
follows that, for a portion of an ideal gas,
PV
T
=
constant.
One can see that, if the amount of gas remains constant,
it is impossible to change just one parameter of the gas:
At least one more parameter would also change. For
instance, if the pressure of the gas is changed, we can
be sure that either the volume or the temperature of the
gas (or, maybe, both!) would also change.
To explore these changes, it is often convenient to draw a
graph showing one parameter as a function of the other.
Although there are many choices of axes, the most
common one is a plot of pressure as a function of
volume: a pV diagram.
In this problem, you…
A-e please
Two moles of carbon monoxide (CO) start at a pressure of 1.4 atm and a volume of 35 liters. The gas is then
compressed adiabatically to 1/3 this volume. Assume that the gas may be treated as ideal.
Part A
What is the change in the internal energy of the gas?
Express your answer using two significant figures.
ΕΠΙ ΑΣΦ
AU =
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Part B
Does the internal energy increase or decrease?
internal energy increases
internal energy decreases
Submit
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Part C
?
J
Does the temperature of the gas increase or decrease during this process?
temperature of the gas increases
temperature of the gas decreases
Submit
Request Answer
Chapter 23 Solutions
Conceptual Physics / MasteringPhysics (Book & Access Card)
Ch. 23 - Prob. 1RCQCh. 23 - What condition is necessary for the sustained flow...Ch. 23 - Prob. 3RCQCh. 23 - Prob. 4RCQCh. 23 - Prob. 5RCQCh. 23 - Prob. 6RCQCh. 23 - Does electric charge flow across a circuit or...Ch. 23 - Prob. 8RCQCh. 23 - Does heating a metal wire increase or decrease its...Ch. 23 - Prob. 10RCQ
Ch. 23 - Prob. 11RCQCh. 23 - Prob. 12RCQCh. 23 - Prob. 13RCQCh. 23 - Prob. 14RCQCh. 23 - Prob. 15RCQCh. 23 - Prob. 16RCQCh. 23 - Prob. 17RCQCh. 23 - Prob. 18RCQCh. 23 - Prob. 19RCQCh. 23 - Prob. 20RCQCh. 23 - Prob. 21RCQCh. 23 - Prob. 22RCQCh. 23 - Prob. 23RCQCh. 23 - Prob. 24RCQCh. 23 - Prob. 25RCQCh. 23 - Prob. 26RCQCh. 23 - Prob. 27RCQCh. 23 - Prob. 28RCQCh. 23 - Prob. 29RCQCh. 23 - Prob. 30RCQCh. 23 - Prob. 31RCQCh. 23 - Prob. 32RCQCh. 23 - Prob. 33RCQCh. 23 - Prob. 34RCQCh. 23 - Prob. 35RCQCh. 23 - 36. Send a letter to Grandma and convince her that...Ch. 23 -
Ohm’s law:
37. A toaster has a heating element...Ch. 23 - Prob. 38RCQCh. 23 - 39. Calculate the current in the 240-Ώ filament of...Ch. 23 - Power
40. An electric toy draws 0.5 A from a...Ch. 23 - 41. Calculate the power of a hair dryer that...Ch. 23 - 42. What is the effect on the current in a wire if...Ch. 23 - Prob. 43RCQCh. 23 - 44. Rearrange the equation current = voltage/...Ch. 23 - Prob. 45RCQCh. 23 - 46. The total charge that an automobile battery...Ch. 23 - Prob. 47RCQCh. 23 - 48. A 4-W night-light is plugged into a 120-V...Ch. 23 - Prob. 49RCQCh. 23 - 50. Show in the preceding problem that 540 C of...Ch. 23 - Prob. 51RCQCh. 23 - 52. Rank the circuits illustrated according to the...Ch. 23 - 53. The bulbs shown are identical. An ammeter is...Ch. 23 - 54. All bulbs are identical in the circuits shown....Ch. 23 - 55. All bulbs are identical in the circuits shown....Ch. 23 - 56. Consider the three parts of the circuit: A,...Ch. 23 - Prob. 57RCQCh. 23 - Prob. 58RCQCh. 23 - Prob. 59RCQCh. 23 - 60. Consider a circuit with a main wire that...Ch. 23 - Prob. 61RCQCh. 23 - Prob. 62RCQCh. 23 - 63. The circuit within an incandescent lamp is...Ch. 23 - Prob. 64RCQCh. 23 - 65. How much energy is given to each coulomb of...Ch. 23 - Prob. 66RCQCh. 23 - Prob. 67RCQCh. 23 - 68. In which of the circuits shown does a current...Ch. 23 - Prob. 69RCQCh. 23 - 70. Something gets “used up” in a battery that...Ch. 23 - Prob. 71RCQCh. 23 - Prob. 72RCQCh. 23 - Prob. 73RCQCh. 23 - 74. Why is the current in an incandescent bulb...Ch. 23 - Prob. 75RCQCh. 23 - 76. Why are all compact fluorescent lamps more...Ch. 23 - Prob. 77RCQCh. 23 - Prob. 78RCQCh. 23 - Prob. 79RCQCh. 23 - 80. What causes electric shock: current or...Ch. 23 - Prob. 81RCQCh. 23 - Prob. 82RCQCh. 23 - Prob. 83RCQCh. 23 - 84. As more lines are opened at a fast-food...Ch. 23 - Prob. 85RCQCh. 23 - 86. Which is the same for a 10-Ω and a 20-Ω...Ch. 23 - Prob. 87RCQCh. 23 - The damaging effects of electric shock result from...Ch. 23 - Prob. 89RCQCh. 23 - Prob. 90RCQCh. 23 - 91. Which will do less damage: plugging a 110-V...Ch. 23 - Prob. 92RCQCh. 23 - Prob. 93RCQCh. 23 - Prob. 94RCQCh. 23 - Prob. 95RCQCh. 23 - Prob. 96RCQCh. 23 - 97. What happens to the brightness of bulb A when...Ch. 23 - Prob. 98RCQCh. 23 - 99. In the circuit shown, how do the brightness’s...Ch. 23 - Prob. 100RCQCh. 23 - Prob. 101RCQCh. 23 - Prob. 102RCQCh. 23 - 103. When a pair of identical resistors are...Ch. 23 - Prob. 104RCQCh. 23 - Prob. 105RCQCh. 23 - 106. Are these three circuits equivalent? Why or...Ch. 23 - Prob. 107RCQCh. 23 - Prob. 108RCQCh. 23 - Prob. 109RCQCh. 23 - Prob. 110RCQCh. 23 - To connect a pair of resistors so that their...Ch. 23 - Prob. 112RCQCh. 23 - Prob. 113RCQCh. 23 - Prob. 114RCQCh. 23 - Prob. 115RCQCh. 23 - Prob. 116RCQCh. 23 - Prob. 117RCQCh. 23 - Prob. 118RCQCh. 23 - Prob. 119RCQCh. 23 - (a) What single resistor would be equivalent to...Ch. 23 - 121. Three 6-ohm resistors are arranged in a...
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